JavaScript Jobs

Freelancer.com is offering you thousands of JavaScript gurus who will help you with all your JavaScript tasks in a timeless manner and with excellent proficiency. JavaScript is a scripting language used to enable programmatic access to objects within software applications. JavaScript will make your website more interactive, allowing your users input information, move elements around on the page, and make your website more functional.

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    1,078 jobs found, pricing in USD
    Javascript Code Challenge 6 days left
    VERIFIED

    I need Js expert to get online coding challenge done,, it is 1 hour code challenge, questions may be random,

    $17 / hr (Avg Bid)
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    4 bids
    Ocaml Project 6 days left

    The project consists of the following deliverables in the OCaml programming language: • interpreter_bigstep: Interpreter of the language Arith in big-step evaluation semantics. • interpreter_dynamic: Interpreter of the Lambda Calculus with the dynamic scope and dynamic typing. • interpreter: Interpreter of the language FPL with all the features we have seen up to the topic Exceptions included. NOTE: The project consists of the following items, which must be done sequentially. To switch to the next item, you need to pass all the tests prescribed for the previous items. Refer to the below table for appropriate deliverables for all the features Feature Deliverable Syntax ...

    $266 (Avg Bid)
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    3 bids

    We want an experience React JS Developer who can work with Junior Developer and Other Team Members.

    $392 (Avg Bid)
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    10 bids

    its computer science kind of a project

    $375 (Avg Bid)
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    4 bids

    We need to build a cookies and privacy GDPR Consent pop-up script with a working consent change and withdrawal feature exactly like this website. The withdrawal option should appear on the privacy policy page or any desired page with a click of a hyperlink. This system should be easy to be implemented on any website based on PHP. Reference website.

    $30 (Avg Bid)
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    9 bids

    We want to develop a website for a service, where there will exist two views, for the clients and for the workers. It is for a possible business idea and we are starting from zero. We would like someone to work with us. The person would have to work with us for future changes and maintenance. We would like to have a chat with the taker to provide details of the project as we don't know how big it could be.

    $539 (Avg Bid)
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    57 bids

    Looking to rewrite the following code in a proper way, using promises instead of "async: false" The code will retrieve and output data data in this way: Document No - Item Code -- Batch No User can select multiple documents, a document has N number of items, and each item can have N number of Batch No. (or none), like so: Document No - Item Code -- Batch No - Item Code -- Batch No -- Batch No Document No - Item Code - Item Code -- Batch No -- Batch No - Item Code -- Batch No Original working code: ``` $.each(selected, function(key,value){ $("#consign_item_body").append("<tr><td>Document No : "+value+"</td></tr>"); $.ajax({ url: "php/", data: { docno: value}, dataType: "JSON", async: false, ...

    $25 (Avg Bid)
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    4 bids
    Build a webiste 6 days left
    VERIFIED

    Build a similar website to : Must have members access area Must the features and controls like in the uploaded video below All will be similar not the same as for the design point of view The deadline will be 1 week ( 7 days) Please read carefully and do not bit just to increase the amount in the chat. The project budget will be in between set parameters . Thank you. The the art files will have a transfer of copyright ownership agreement with the right to commercially sell.

    $178 (Avg Bid)
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    27 bids

    I'm looking for someone to help me. Key responsibilities: Architect and develop advanced Web and mobile applications Work closely with UX/UI designers and Product Owners Translate designs and wireframes into high quality products Develop automated unit and system tests Propose and evaluate technical solutions as part of research spikes Lead and participate in peer design and code reviews Provide technical input into product roadmaps and backlog refinement Participate into DevOps improvement initiatives and the evolution of Agile practices Share best practices with team members and help the team grow Qualifications and Education Requirements 5+ years of experience developing Web and mobile applications Excellent knowledge and skills in TypeScript, React.js, React Native, responsive ...

    $34 / hr (Avg Bid)
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    34 bids

    I want to build a reward app, for ios, android and web version that has the following features. 1. Ad networks & Offerwalls (40+) 2. Has Quiz, Image Puzzle, Word Guessing, Jigsaw Puzzle, Scratcher, Lotto, Spin Wheel, Wallet System 3. Has Video Views where users can watch and view videos either by direct mp4 or youtube 4. Tasks & Microjobs system & Survey system 5. Leaderboard & Built in Chat support 6. Fraud Prevention System 7. Referral System 8. Withdrawal system & Redeem option

    $490 (Avg Bid)
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    11 bids
    Angular writer 6 days left

    Angular echart professional proofreading and copy pasting

    $450 (Avg Bid)
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    6 bids

    need kendogrid and jquery expert help, only if you know kendogrid ui apply, do not waste your and my time if you do not know kendo grid well

    $14 (Avg Bid)
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    2 bids

    I need same functionality like meesho and I want long term relations with you . If you got selected.

    $21 / hr (Avg Bid)
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    15 bids

    Instalacao Web Aplicação e Angular Web hosting IONOS. documents:

    $18 (Avg Bid)
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    3 bids
    Ethereum gwei app 6 days left
    VERIFIED

    * Gwei App * Foundation of the app * The gwei/gas tracker app will be for the Ethereum blockchain initially * The app needs to be set up so that it can draw data from on-chain data to provide data such as what address or project is using the most gas. * The app will also need to be set up to use trading view API and portfolio tracker. (Later implementations) - Initally just track top 100 coins and top 50 NFT tokens * More blockchain support later on such as BSC, AVAX, SOL, BTC and ADA * App will need to be responsive with a beautiful but simple UI to navigate * The app needs to be able to gave a chrome extension.. * Features for version 1 * Price Alert Types (we may have to prioritize based on speed) * Push notification * Email * SMS ...

    $8321 (Avg Bid)
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    9 bids

    We have recently integrated the Wishlist Plus app on Shopify. We have noticed that on the wishlist page () if an item is added to cart, it doesn't appear visible in our drawer cart. Whilst it does add the product to the main cart page we want the drawer cart to be updated like when normal products are added to cart. The app developer has given us a guide to integrate this - This should be straightforward for an experienced developer. Please add the words ADDTOCART to your proposal to prove it is not an automated application. We currently have a budget of $20 for this task, please do not apply if you cannot do it for this amount.

    $30 (Avg Bid)
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    6 bids
    React.js Website Development 6 days left
    VERIFIED

    We're an online platform servicing the Australian Real Estate industry looking for a Frontend developer. The developer will be working on an existing React.js project to help complete the build ready for launch. Requirements - Experience working creatively within existing style and brand guidelines. - Strong experience using React.js - Strong Web Development - HTML, CSS, JavaScript (min ES6) - Experienced in responsive design - Working with APIs and asynchronous communication - Experience using Sass pre-processors - Comfortable using Redux for state management - Experience using GitHub, Jira Optional experience with C#, .NET, AWS We are a structured and organised team and use Github, Jira and Microsoft Teams as our project management and collaboration tools to ensure we work in ...

    $25 / hr (Avg Bid)
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    89 bids
    appsheet developer 6 days left
    VERIFIED

    i wantto build inventory google appsheet , need someone who is very use to of it and can manage to build me inventory

    $153 (Avg Bid)
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    11 bids
    Blockchain developer 6 days left
    VERIFIED

    Preferred Candidate: Deep understanding of crypto economics Experience in Blockchain and distributed ledger technologies and development Proficient in RDBMS, NodeJS, C++, NoSQL, JavaScript, Java, algorithms, data structures, and distributed databases Familiar with cryptographic principles Experience of Blockchain architecture, standards/protocols, and private keys Experienced in developing in AWS, Azure, or any other cloud space Perks and Benefits:

    $1285 (Avg Bid)
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    I need a working prototype for an app that can buy tokens via pancake swap I already have some working code to start with. You can use thihs as a guide or you can start it from scratch..

    $164 (Avg Bid)
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    10 bids

    Looking to co-work with a React Native, React and Node.js developer. Preference if you know graphQL.

    $680 (Avg Bid)
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    10 bids

    Hello, freelancers. I am looking for a fast dev(Indian or Pakistan) who can add SSAO function to my visualization system. This project must be completed within 1 day. This is simple task for experienced developers. I will provide strong candidate my data. Consider that my budget is $100~$150. Natali.

    $90 (Avg Bid)
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    2 bids

    Have a chrome extension that needs to be converted to safari so it can work on safari too.

    $15 (Avg Bid)
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    Create a python script that checks for Twitch Channels and YouTube Channels that are view botting/follow botting with automatic alert post on twitter with following details: Streamer/Youtube Channel name Reason for Alert example: " xy is view botting and has a increased viewer ship of xy viewers in xy seconds/minutes/hours and is susptected to view bot" Youtube/Twitch Stream link the script should also not post false alarms

    $561 (Avg Bid)
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    12 bids
    Need a chat bot 6 days left
    VERIFIED

    Hello, I Need to build a simple chat bot that will target my friends list on Facebook and work with fb messenger. should save the info on the conversation. thanks kobi

    $572 (Avg Bid)
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    16 bids

    You must be at least 16 years old. You do *not* need any experience. You must either live in any country in the Western Balkans or in certain countries in Eastern Europe or Latin America. I will pay you each day, for every hour you work for me. You will normally work 8 hours/day. ✻ HOW TO APPLY ✻ Please do *not* bid on this project the normal way. Instead, to apply for this project please paste... Python_Full_Time_23_Nov_2021 into your Freelancer profile. I will search for... Python_Full_Time_23_Nov_2021 If your profile were to interest me then I would invite you to bid on this project thereby enabling you to bid on this project "for free" (without spending one of your bids). Please wait *patiently* for up to 48 hours for me to invite you because I do *not* have a bo...

    $1380 (Avg Bid)
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    5 bids
    JWK, JWT and token validation 6 days left
    VERIFIED

    I have the payload, public keys and the header. Basically the outside software will view the token and see if it's valid then it will give a green check mark. If the token created is not valid then it's a red check mark. I want you to create a token and sign it by the issuer so that the token is valid. I don't care how you will do it as long as the results are good then it's all good.

    $203 (Avg Bid)
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    I need someone to create a code, or make some script where the person makes a click but mark their cookie in other links. I want the person to click my link once and it automatically feels as if they clicked on other links together with the same click. Or something that the person clicks on and starts to open other hidden tabs (new links) without closing the tab the person is on.

    $146 (Avg Bid)
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    I need a complete fork of Wonderland. How much would it cost to fork Wonderland on Avalanche network? How much would it cost to fork Wonderland on Solana network? I need the front end, back end, and all coins. I will do all content changes (artwork, writing). Thank you!

    $681 (Avg Bid)
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    17 bids
    Php Development 6 days left

    Designing high-frequency web services with PHP 7.4 and Symfony 5

    $43573 (Avg Bid)
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    20 bids
    Obfuscate Django app 6 days left
    VERIFIED

    obfuscate a Django project (with JS front-end)

    $1113 (Avg Bid)
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    22 bids

    I want to create a small website to host the list of people, and to check if they register for an appointment. The results have to be anonymous : the system check the list when he receive an appointment. If the names match, it just tel "one people was verified taking an appointment". And it keeps the numbers of appointments. Thanks for your help

    $603 (Avg Bid)
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    This website encrypts the IMEI and makes the request get. The encryption function is in javascript. The job is simple to make a file in which I can enter IMEI and receive encrypted as on the OPPO page IMEI to test: 869260032102477

    $50 (Avg Bid)
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    3 bids

    Need blockchain developers for ongoing work. Opportunity also available for fulltime work with good pay. Need people in India.

    $26 / hr (Avg Bid)
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    9 bids

    I need someone to create something like Whatsapp or Messenger for me

    $651 (Avg Bid)
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    14 bids
    Paymentwall checkout pages 6 days left
    VERIFIED

    checkout page for one time payment to implement in own website. Collect: Name, Country, email from buying customer.

    $160 (Avg Bid)
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    31 bids
    Project in ReactJs -- 2 6 days left
    VERIFIED

    Integration of interfaces using React Modeling and Data access layer Create NestJS/GraphQl backend

    $27 (Avg Bid)
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    7 bids
    i want form builder for html 6 days left
    VERIFIED

    i want form builder for html and i want know how to save the template and upload it in database in php i will let a photo similar for what i want

    $169 (Avg Bid)
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    Hello I would like to add the i18n system on a multiselect base on the tailwind headlessui code. My framework is nextjs. Add the i18n system on a multiselect with Image + Text

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    Hello, I need to create a coupon code for a product on my checkout page. I'm using CF pro tools code on the page to merge two separate products together as one purchase. A single time purchase product + subscription product as one purchase. $47 initial purchase + 14 day trial... then $47/mo I'm looking to create a coupon code for the first initial purchase, then after the 14 day trial it will remain the same $47/mo. Please respond to this job posting if you're experienced in developing code within Clickfunnels. Also if you've used CF pro tools in the past or have created promo codes that will be a huge plus. Thank you!

    $14 / hr (Avg Bid)
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    Need a FE Developer with React.js

    $16 / hr (Avg Bid)
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    35 bids

    hello , im looking for an expert developer for coding a project related to chrome extension. if you have the required experience, place a bid on the project. thanks

    $160 (Avg Bid)
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    Bubble Engineer 6 days left

    We are hiring 3 full-time bubble developers to take over our platform from the original developer. He will provide transition support. A Product Manager will be the team lead. We have a 2-sided marketplace (2 systems that interact) with an admin/reporting system, each engineer will be response for one of those 3 systems and be responsible for creating initial documentation and then enhancing the systems per the product roadmap. Our platform is for proptech, realestate tech, marketplace, lead generation, crm, financing, and more. There are a lot of functionalities on our platform already, too many that codemap will let us list out. You will need to have: - Multiple years experience with Bubble (advanced role) - Javascript/Jquery experience - Database/SQL experience - JSON, GET/Post API ...

    $102 / hr (Avg Bid)
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    Senior Frontend developer: · Mid to senior level frontend developer with experience working remotely for a large enterprise. · Experienced working in an Agile development environment with a team of other Software Developers and User Experience Designers/Developers · To build and maintain an Angular Component Library, which enforces consistency, branding, accessibility (a11y) and internationalization (i18n) standards across multiple web applications. · An ideal candidate will have a working knowledge of: TypeScript, HTML, SCSS, Angular above version 2 (Currently on Angular 9), Karma, Jasmine, Cypress, nx by nrwl framework

    $80269 (Avg Bid)
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    PSD to React Js Conversion 6 days left
    VERIFIED

    We have a PSD design which needs to be converted in simple React Js project. No complex functionalities.

    $446 (Avg Bid)
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    My client sells signature opportunities with celebrities. People buy a signature, then send in their item to be signed. Once signed, its returned to them. They pay for the return shipping during the checkout process. Sometimes though, there is overlap. Now you have signature 1, and signature 2. They will announce a new celebrity signature (signature 2) that is related to a previous one, and the item is already in the client's possession (for signature 1). The customer is now charged shipping twice for the same item to be returned. We need a checkbox DURING THE ADD TO CART process that a custom can select if they are adding a second signature to an item thats already in our possession. This will remove the shipping cost but ONLY FOR THIS ITEM. When selected, the customer must a...

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    Gdrive movie folder indexer 6 days left
    VERIFIED

    looking for a program to search for free movies on open google drive folders

    $35 (Avg Bid)
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    At a high level we’re looking to do a landing page that includes a questionnaire that when completed by the user would generate an infographic based on their responses. This infographic would then be sent to the participant for them to share on their social channels. We would also want to capture the user data to be given to our client. We are looking to have to have this be completed by end of December, Beginning of January. We would be able to supply the design of the landing page as well as the custom infographic but would need help with build, hosting, any maintenance, etc.

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    Mid to senior level frontend developer with experience working remotely for a large enterprise. · Experienced working in an Agile development environment with a team of other Software Developers and User Experience Designers/Developers · To build and maintain an Angular Component Library, which enforces consistency, branding, accessibility (a11y) and internationalization (i18n) standards across multiple web applications. · An ideal candidate will have a working knowledge of: TypeScript, HTML, SCSS, Angular above version 2 (Currently on Angular 9), Karma, Jasmine, Cypress, nx by nrwl framework

    $26 / hr (Avg Bid)
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    39 bids
    Java program 6 days left
    VERIFIED

    Simple java program development

    $26 (Avg Bid)
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    26 bids

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