JavaScript is one of the most popular programming languages in the world. If you are looking for a website to be created with sophisticated interactivity or in search of an impressive mobile app, using JavaScript is the way to go. With the help of our expert Javascript Developers, you can bring your idea to life.
A Javascript developer on Freelancer.com can create dynamic web applications with extended features and improved user experiences. They can also design advanced gaming applications, develop cloud applications, and create powerful websites that work with less coding and low complexity.
Here's some projects that our expert Javascript Developers made real:
- Developed interactive websites & apps with detailed user accounts experience
- Created powerful applications that streamline complex data into actionable insights
- Built custom Windows and Mac software designed to fit client specifications
- Developed mobile apps that enables customers to access data from their phones
- Connected databases to web interfaces with easy input/output functionality
- Optimized existing code for faster loading pages and smoother user workflows
Javascript Developers on Freelancer.com know how to turn ideas into reality. They are experienced professionals dedicated to excellence and creating top-notch scripts that are easy to use, reliable and fast. If you have an idea but don’t know how to turn it into technical reality, Freelancer.com is the place to post your project. Hire our expert Javascript developers today!
从693,535个评价中,客户给我们的 Javascript Developers 打了4.86,共5星。雇佣 Javascript Developers
We are fetching 3.3 million data from postgres DB on heroku, it's getting timeout error. it's working well on local This is error message. heroku[router]: at=error code=H12 desc="Request timeout" method=POST path="/api/product-codes/generate" host= request_id=0c02eef4-888c-40ed-aaa2-b59ffb4c7e68 fwd="" dyno=web.1 connect=0ms service=30000ms status=503 bytes=0 protocol=https
Correction with a Storelocator app using google maps API / place api and routes api
Hello, I looking Developer for work on some backend tasks in my Shopify App 1- Backend PHP, Larevel Frameworks. & Vue Charts 2- Shopify API knowledge 3- English Voice Communication 4- Welcome to work in a team
For my project I am looking for a designer (CMS design simple) and a datatables jquery EXPERT! You also know how to load files with AJAX and your own alert jquery design
I'm looking for help getting PerfexCRM set up and configured from the ground up. I have a hosting platform already in place, so that I need you to be set up. and also I do need help customizing the software so it works exactly how I want it. I'm looking for someone with extensive experience in configuring and installing CRMs, so they can make sure it's done right the first time. Any questions or suggestions you may have throughout the process would also be greatly appreciated. Files Included JavaScript JS, HTML, CSS, PHP, SQL Software Framework CodeIgniter Software Version PHP 8.x, PHP 7.x, MySQL 8.x, MySQL 5.x
Got Error if i want to use any Command like php bin/magento module:status syntax error, unexpected 'protected' (T_PROTECTED), expecting variable (T_VARIABLE)#0 /var/www/vhosts/(433): ComposerAutoload{closure}()
HI I am having work related to Java Servlets. Are you interested?
I'm looking for someone who can help me unminify Javascript and CSS files. I need someone who can handle both Javascript and CSS files and is familiar with whatever dependencies may be involved. I'm not sure if any restructured format is needed, so you should be comfortable delivering in any format. Please provide examples of similar projects that you have completed. Thanks for your help! I need someone to fix the problem stated in SEMRUSH report. 1-110 issues with unminified Javascript and CSS files 2- 11 pages have slow load speed Payment will release after job done with latest Semrush report.
I'm looking for a skilled JavaScript programmer to help me create a fun and interactive Tic-Tac-Toe game. The game needs to be developed using the JavaScript programming language and must support both iOS and Android operating systems. The game will be a real-time interaction, with users being able to interact and make moves in real time. Ideally I'm looking for someone with experience in creating gaming apps and can offer me their expertise to ensure that the game is up to a high standard. If you think you have the skills necessary to complete this project, then I'd love to work with you.
I am looking to build a website in which I can show data and charts from Google Sheets. I also have an existing dataset that needs to be integrated into the website. Its a simple website where suer can selects few filters and see table / charts based on the google sheet data in backend
Hi there, I have a quick short project for a react expert. No backend work is required as I have that required support. I need to expedite the build of the profile pages for my application. All the designs are ready. This includes the website version and mobile display version. Must be able to use correct react standards and correct folder structure build. Commenting is required on everything. If you are interested, please tell me how many websites you have built using react and your experience using it.
I am in need of help on a website conversion project. I am looking for an experienced professional who is able to communicate effectively and take on this project as quickly as possible. The website that needs converting is an eCommerce site. This is an exciting project to be a part of and I really appreciate your help in creating a successful website conversion.
I'd like to have a template based on TikTok functionality, just hard-coded content, but all the interactions should be available, I'd like to have it in plain HTML(with JS libs that are necessary), should work with mobile, and should be possible to frame it so the project needs to be responsive.
Hi there, I have a quick short project for a react expert. No backend work is required as I have that required support. I need to expedite the build of the profile pages for my application. All the designs are ready. This includes the website version and mobile display version. Must be able to use correct react standards and correct folder structure build. Commenting is required on everything. If you are interested, please tell me how many websites you have built using react and your experience using it.
I have a ready-made code, but it shows errors when I run it, I need someone to modify the code..... Attached is a picture of the code with the resulting error
Hello, I require a professional with experience in Facebook GraphQL. You must verify that you have previous experience --- Hola requiero de un profesional con experiencia en Facebook GraphQL. Debes comprobar que tienes experiencia previa
I am seeking a dedicated, reliable and experienced Python or Orange expert for a project. The task requires expertise with Python language in particular, although knowledge of Orange may be beneficial. The work required is solely individual and does not involve any collaborative efforts. It is essential that the Python expert has a solid background in Python development and is detail-oriented, as accuracy and precision of the project are essential. Some academic writing is also involved If you are the ideal candidate, then I look forward to working with you on this project.
I am looking for someone to help create a Japanese learning platform in the form of a web application. The platform would feature the Japanese language and no teaching or learning methodology would be necessary. The platform may feature interactive lessons, some media for learning, and other activities to enhance the learning process. The platform should feature a user-friendly interface that is easy to navigate, as well as intuitive design in order to maximize the user experience. This platform should be interesting and engaging to users, and should allow them to learn Japanese in an efficient and enjoyable way. The platform should also have the ability to sync with other apps and platforms to support effective translation and communication in Japanese. So if you have experience with cre...
I need a very simple code that can do the following:- 1. Use login credentials to access a website. 2. Inside the website, a submit button will become "Enabled" at a fixed predetermined time. 3. Enter a user-specified amount (usually a fixed amount) in the window and click 'Submit'. 4. Before submitting, a 'I am not a robot' Google reca*ptcha must be completed - it is integrated into the webpage. 5. So the code will require API integration of 3rd party reca*ptcha solvers like 2Cap*tcha or AnyCap*tcha. 6. Once the submission is done, the result of the submission (Sucess/Fail) will be displayed. As an optional feature, the code can create a result summary for all the accounts submitted and email to the user. 7. The code should be scalable i.e. the user can enter...
As a business owner, I know how important search engine optimization is to stay at the top of the search engine results page. That’s why I’m looking to hire a Freelancer to take on my search engine optimization (SEO) project. This project is focused on providing both on-page and off-page optimization to my website - complete with making small adjustments to an existing SEO strategy. My website is a large one, with more than 20 pages that need work. I need the Freelancer with excellent knowledge and experience with SEO to review all of my pages, as well as come up with strategies for increasing web traffic and improving my ranking on search engine results. This also includes executing on-page SEO techniques such as optimizing content, URL structure, internal link optimization,...
I am looking for a talented developer to create a razor pages for me. The application needs to be written in c#, javascript developed in ASP.NET MVC razor pages, and include c# and Javascript. I am expecting a program that is easy to use, sophisticated and with great UI/UX design as well as functional. As the programmer of this application, you will need to have an excellent understanding of c#, javascript and the ASP.NET MVC framework. If you believe that your skills and experience are a perfect match for this project, please get in touch. I look forward to hearing from you!
Hi! I'm looking for a freelancer to create a website crawler for my project. While I'm not completely certain at this time, I believe that I need the crawling process to be automated. I would like this crawler to be able to traverse both static and dynamic websites, and extract text from them. If you have the expertise necessary to help me with this project, I'd love to hear from you!
We have several websites that need the CCS files cleaned and a lot of the header's old coding removed. We are currently using Elementor in Astra, and it's giving us a lot of issues, not being able to update changes due to the poor coding in ccs files. Seeking a guru to clean all this manually and get our elementor menu working 100% Not seeking any plug-ins to install and no quick fixes adding more code. Need an expert to clean and make coding fast and excellent.
I have attached a similar project that I am wanting. The example I have is outdated and from another school. I want to create something similar for my school's context and attempted to do this on my own. I would like to hyperlink our school's documents into the project as well as to the NCCD website and their documents. I like the video elements as well. I want it to look professional and want it to be user-friendly for all staff. The links are also really clunky and not completely able to read the content either. I want our data capture to be accessible form every year level as well (Prep-Year 6). I am not sure how this might work or whether this is realistically possible (one can only hope!). I am able to supply all the documents and information I am requiring but it would be s...
Manual que indique como configurar el wss, utilizando con el código adjunto, el cual que permite comunicación entre el servidor y el navegador (javascript) con el protocolo Web socket, identificando los clientes que se conectan con un ID único, utilizando la librería Open Swoole. De acuerdo a este articulo y el codigo de Quedo atento
I am looking for an experienced developer to build a chatbot using the RASA framework that can be deployed on a website, Facebook, WhatsApp, and Telegram. The chatbot should be able to understand and respond to user messages in a natural language and perform tasks such as answering questions, providing information, and completing transactions. Responsibilities: Develop a chatbot using the RASA framework that can be deployed on a website, Facebook, WhatsApp, and Telegram. Create training data for the chatbot by providing examples of user messages and the corresponding chatbot responses. Train the chatbot using the training data and test it to ensure that it is functioning properly. Deploy the chatbot on the desired platforms and integrate it with the necessary APIs. Continuously improve t...
I need a (backend & frontend) developer that can complete an existing app. It's a subscription marketplace that will allow users to: - open, access, manage, update, recover, & exit accounts; - list & manage companies; - browse, buy/pick(first-time), sell/push, buy/pull, & manage subscriptions; - create, duplicate, update, delete, & view briefs(posts) ~ admin only; The backend and frontend for most of the above tasks have already been completed by the previous developer. However, some tasks are yet to be completed. Kindly come to chat about what's left to be done. Kindly note that the below demo video is just for the overview of the app, it doesn't explain some tasks such as posts ~ thanks. The app requires a deep knowledge of (backend & fronte...
I am looking to hire someone to create a professional, user-friendly website for an affiliate forex trading business. It will be a landing page website that will provide information but not accept any payments. The website should feature a simple, basic style with no customization options. All of the content, writing and visuals will be provided by me. I'm looking for an experienced web developer who can create a website that meets my requirements.
Hi, I need a JavaScript (JS Snippet) function that allows me to simulate sending a text automatically, on : IMPORTANT: It is very likely that to finish the project you must have knowledge of facebook graphql. 01. The text to be sent must be passed as a parameter of the function 02. Only JavaScript should be used (no library can be used) 03. Only a function created with JavaScript is accepted (no other programming language is accepted), only JavaScript 04. Code must be easy to understand 05. The code must be accompanied by comments to understand how it works 06. The project must be for the Spanish version of messenger 07. No API should be used only JavaScript 08. Chrome extensions are not accepted 09. 100% of the task has to be executed by the script without any manual intervention 10. Th...
I am looking for a freelancer to customize a web browser for me. The task is to fix the lack of JS support in our custom web browser... without breaking anything else. The main problem is that VideoJS no longer plays in our browser due to the latest changes in VideoJS. Consequently Vimeo videos no longer play either because it seems to use VideoJS of late. It is JavaScript support that needs to be updated. Our own web browser does not provide dev tools, error console or view-page-source, so it will be useless for debugging. However we can provide the source for the browser that we forked from which will be identical in all relevant aspects. We will provide the original source that we used for our browser, with build instructions and a ready compiled binary for initial testing. Previous...
Necesitamos crear un software que controle todos los datos de las maquinarias que arrendamos, los cuales tienen que ser reflejados en un historial el cual pueda imprimirse. Adjunto imagen de referencia
Im looking for freelance developer to work on a project to create a Chrome extension that utilizes AI to read and summarize a certain piece of text on websites. Extension needs to be able to recognize when it is on the page. Responsibilities: Develop a Chrome extension that can detect when the user is on a specific part of the website and utilize AI to read and summarize the text into 5-10 bullet points. Implement the UI/UX design of the extension. Test and troubleshoot the extension to ensure that it functions properly. Work collaboratively with the project team to ensure the timely completion of deliverables. Requirements: Proficiency in JavaScript and experience with Chrome extension development. Familiarity with APIs and integrating third-party services. Understanding of UI/UX desi...
Hello, We would like to create a store that is based in PHP script, that show items that the store itself doesn’t have but its data imported from global markets all over the world (famous e-stores) and saved all of the products data on the website base itself, except for product options and prices, as they vary. The system should update hourly to check the updates of the product details and prices if they’re changed/updated on the original website so these data can be updated on the store as well. In addition of the specific requirements mentioned above, the store should include all of the options of any basic and developed store in the globe. Admin panel and store interface themes are available as PSD only, so these PSD files should be integrated to the website.
Guys..it's my due date for project.. It's the last minute task! I have a GitHub python code based on automation web based application for time table generation. Some changes i need are - 1) i need a user registration/ login page 2) data of the timetable should be generated based on my input data (that I'll provide) 3) logo and texts according to my input 4) logout button (because of the login page) I'm attaching a sample timetable which has all the courses and professors names this is what I need in the dataset. And the logo should be this.( Jgi )
We are seeking a freelance developer to work on a project to create a Chrome extension that utilizes AI to read and summarize a certain piece of text on websites. Extension needs to be able to recognize when it is on the page. Responsibilities: Develop a Chrome extension that can detect when the user is on a specific part of the website and utilize AI to read and summarize the text into 5-10 bullet points. Implement the UI/UX design of the extension. Test and troubleshoot the extension to ensure that it functions properly. Work collaboratively with the project team to ensure the timely completion of deliverables. Requirements: Proficiency in JavaScript and experience with Chrome extension development. Familiarity with APIs and integrating third-party services. Understanding of UI/UX d...
My project requires interface design for both a website and an app. I have some specific ideas but I am also open to suggestions. The design will be implemented with Front End HTML/CSS/JavaScript. If you have experience in interface design and can deliver high quality products, I would love to hear from you.
I need information only: Will Pay small amount Gamers who use the Mumble Server and have a cool Mumble page for your users to look at. Tips and Tricks to css and edit page files is needed. Thanks this is for Mumble users only!
I am in need of a full stack developer to help me develop products within the supply chain, specifically a Warehouse Management System. The developer needs to have experience in both front-end and back-end development and I need the project to be completed within 6 months. I am confident that with the right expertise this project can benefit my business on a long-term basis.
Somos una empresa de base tecnológica que agiliza la transferencia de conocimiento. Potenciamos a todo tipo de organización como grandes corporaciones, gobiernos y medianas empresas a través de nuestra plataforma de capacitación y los contenidos que producimos a medida o ya tenemos producidos con especialistas para los clientes. Estoy buscando un desarrollador calificado para ayudar a crear una aplicación móvil ReactNative de front-end que sea compatible en múltiples plataformas. No estoy completamente seguro de si necesito que la aplicación se conecte con una API o servidor existente, así que también estoy abierto a sugerencias al respecto.
I want be able to get notifications (like a active bot) from to either telegram or discord whenever a amazon deal appears
Hi, I need this figma prototype on react: There's still some fixes which should be made on the prototype On this prototype there's some pages missing, first one: administration dashboard (image 1 attached) Second one: Administration panel (which was not made) including a support panel (search for clientes and this stuff) All the project need to be made using styled-components. To apply to this project, start your bid with RIZZO, if you start with different word, your proposal will be rejected
Busco Programdor con experiencia en el lenguaje Frappe, php y Javascript con la finalidad de poder desarrollar un modulo de gastos dentro de un sistema contable para el registro manejo de los gastos generados
I am looking for a skilled and experienced Front End Freelancer to join our team. The ideal candidate should have a minimum of 3-5 years of experience in front end development, with a strong portfolio showcasing their work. Responsibilities: Develop user-friendly and responsive websites and web applications. Work closely with designers to translate designs into pixel-perfect HTML, CSS, and JavaScript. Optimize websites for maximum speed and scalability. Collaborate with back-end developers to integrate front-end and back-end systems. Ensure cross-browser compatibility and accessibility standards are met. Stay up-to-date with the latest web technologies, best practices, and trends. Requirements: At least 3-5 years of experience in front-end web development. Strong knowledge of HTML, CS...
We are looking for an experienced Ruby on Rails developer to create an application for adding, editing, and creating tasks. The application should also incorporate Bootstrap to ensure a visually appealing and responsive user interface. The application should include the following features: User authentication and authorization A dashboard for displaying tasks and their statuses The ability to add, edit, and delete tasks Task categorization and filtering Commenting and collaboration features for tasks Notification system for task updates and deadlines
Hi there, I'm looking for someone to help me create a website for my private equity firm, Kairos Equity Partners. The website should be a business/corporate brand website, and I'm looking for assistance specifically with graphic design elements such as logo creation and images. Additionally, the website should feature a contact form. This website is critical to the success of our company, so I'm looking for someone who can create an attractive and professional website quickly and efficiently. Thanks for considering! Example websites: 1. -- this is just a landing page but is my preferred based on Kairos’s stage 2. 3. 4.
I have this web page I need that in the mobile and tablet version insted of showing each module one above the other (like happends now), it shows one side by side the other and appears arrows in the left or right to move right or left to see the other modules. The idea is that the user could clic this arrows or just slide the modules right or left to see the other modules. I created a video of an example so you can unserstand better, you can see it here (the web page that appear in the video, if you want to check it out is ) This is an easy task, I can pay max $5 for do it in 1 day
We are seeking an experienced Node.js developer to integrate multiple third-party APIs into our existing project. The ideal candidate should have a strong background in server-side development with Node.js and expert-level knowledge of integrating APIs from Quickbooks, Zohobooks, Freshbooks, JIRA, Okta, Microsoft 365, GSuite, Slack, Zoom, Salesforce, Hubspot, Atlassian, Zendesk, GitHub, Semrush, AWS, Adobe Creative Cloud, Figma, and Zoho People.
I'm looking for someone to help me add ads on my website. I'm mainly considering video ads, and it's important that they are set up correctly. I also need someone to help me closely monitor the performance of the ads, and to provide me with meaningful analytics. If you have any experience in this field and think you'd be a good fit for my project, please let me know!
We have a app in React Native with Expo 45 we need to upgrade to the latest Expo version and with all of dependencies. The URL of the Play Store is ...... Update process. Development of quality tests (update verification). Update in production (upload changes). Upload the update in a mobile application in the Play Store (TecnoGruas).