What Is JavaScript? 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.

If you are a JavaScript guru, can finish tasks with high level standards and in a timeless manner, then this is the right place for you! Freelancer.com supplies JavaScript freelancers with thousands of projects, having clients from all over the world looking for having their job done professionally and settling for nothing but the best. Jobs vary from building a dynamic web & desktop applications to fixing errors and malfunctions with Scripts. Those clients are looking for someone like you to get the job done. If you believe you can do that, then start bidding on JavaScript project and get paid with an average of $200 per project!

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    736 trabajados encontrados, precios en USD

    **Favor de visualizar documento adjunto Cuento con un sistema que realiza los reportes por separado y deseo uno en donde se muestren todos los sensores en diferentes colores como lo muestra la primer imagen, deseo que aparezca en la seccion de mi sistema en reportes gráficos Sistema a modificar: usuario:freelancer contraseña:123456 En el manu superior (menú azul) seleccionar el apartado de "REPORTES" - + - Seleccionar tipo de reporte "grafico" - "sensores" NECESITO ESTE TIPO DE REPORTE

    $189 (Avg Bid)
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    13 ofertas

    Agregar nueva funcionalidad a aplicación web React.js desarrollando módulos en el Fontend, proporciono API con los métodos ya implementados.

    $161 (Avg Bid)
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    Somos una organización social comprometida con el fortalecimiento de procesos educativos para comunidades infantiles y juveniles en Colombia. Para lograr nuestro sueño de lanzar una propia plataforma de capacitación virtual, estamos buscando una persona con experiencia mínima de un año en Node.js, Express, y MySQl, que realice el despliegue de la aplicación que fue desarrollada en Node. Contáctanos si te sientes inspirado a ayudarnos en este propósito.

    $6 / hr (Avg Bid)
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    7 ofertas
    Programación en Odoo web Seribas 5 días left
    VERIFICADO

    Deseamos realizar ajustes en las páginas webs Odoo realizadas con el ERP Odoo, para nuestros productos impresión y corte de metal el estándar del ecommerce de Odoo no es suficiente y debemos realizar ajustes de programación en sitio web, Requerimientos: - Crear un configurador que analice archivos en formatos: PDF, AI. EPS, STEP, SVG, DWG, DXF y extraiga la información del perímetro / total de la curva del archivo/imagen y coloque el resultado en las casillas del cotizador. Web que tienen un configurador similar al requerido: - Incluir: -Imagen en los atributos/valores de las combinaciones - duplicar y ajustar una formulas de consumo -Selección de fecha de entrega_ tipo calendario : Días / Costo / tipo - Posibilidad de desplegar...

    $668 (Avg Bid)
    $668 Oferta promedio
    15 ofertas
    Sitio web para diario 5 días left
    VERIFICADO

    Buscamos un programador con experiencia para desarrollar una página web de noticias y un panel de administración para la publicación. Estamos buscando a alguien con experiencia previa en el desarrollo de portales para agencias de noticias. Si tienes los conocimientos en JavaScript, php, react, Vuejs y otros lenguajes de programación, te invitamos a que postules. ¡Esperamos tu respuesta!

    $89 (Avg Bid)
    $89 Oferta promedio
    16 ofertas

    Busco un developer backend con experiencia con el MERN Stack Busco a alguien que pueda trabajar 40 horas a la semana minimo. Alguien que tenga experiencia con Node Js , Mongo Db , React , Express , Javascript , PHP. Se busca alguien ideal que hable espanol & que se pueda integrar rapido a los task & al equipo.

    $499 (Avg Bid)
    $499 Oferta promedio
    58 ofertas

    Necesito desarrolladores Java

    $433 (Avg Bid)
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    16 ofertas
    Programador front-end React.js 4 días left
    VERIFICADO

    Startup busca programador front-end react.js o para desarrollo de portal informativo orientado al Sector de Criptomonedas. Requisitos: - Disponibilidad de tiempo de 4 a 8 horas. - Dominio del idioma español. - Dominio de framework, js, css y API. - Si tiene algun conocimiento backend mejor. Se ofrece: - Horario flexible. - Equipo jovenes. - Buen ambiente laboral.

    $497 (Avg Bid)
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    81 ofertas

    Nos encontramos en búsqueda de un desarrollador full stack para robustecer un software, el proyecto tiene una estimación de 135 horas

    $2075 (Avg Bid)
    $2075 Oferta promedio
    41 ofertas

    Proyecto para desarrollar software de trascripción de audio a texto en español modo manual (subiendo uno a uno los audios) y automático (tomados directamente del servidor que graba los audios) Fuente de sonido: radio y televisión, preferimos que sea desarrollado en lenguaje python. Requerimos experiencia en el desarrollo de este tipo de software demostrable. Todo el desarrollo debe estar documentado como paso previo al pago. Desarrollo de Back y Frontend conforme especificaciones técnicas que se le indiquen. Tasa de error en reconocimiento aceptada +/- 2% Una vez hecho el código y previo a la entrega deberá ser testeado con diversos audios que se enviarán al desarrollador.

    $1085 (Avg Bid)
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    16 ofertas

    Se plantea dar seguimiento, desarrollo y soporte al front-end , para la interfaz grafica con la que nuestro cliente tiene interacción. Perfil solicitado Experiencia en : • Manejo de Java Script • Uso de plataformas Low Code • Interacción con módulo services Api SOAP. • Manejo de CRON para ejecuciones de script. El objetivo principal a realizar son el desarrollo y soporte del front-end en Budibase, para el análisis de datos, creación y ajustes gráficos de los mismos. Objetivos específicos • Creación de base de datos • Creación de graficas, funciones, puntos de acceso, que nuestro cliente nos pida crear o cambiar para el manejo y visualización de datos • ...

    $18 / hr (Avg Bid)
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    8 ofertas

    Necesitamos automatizar la tareas de envio de mensajes por whatsapp que actualmente enviamos manualmente a clientes frecuentes y potenciales. En el mensaje se envia un archivo PDF y una reseña escrita que van modificandose segun la necesidad de contenido. Como las herramientes de whatsapp cuentan con demasiadas restricciones a la hora de envio de mensajes por medio de listas de difusiones actualmente no tenemos opcion que enviar la informacion necesaria en forma manual contacto por contacto por lo tanto el objetivo de este proyecto es crear un bot/sistema que replique la tarea

    $521 (Avg Bid)
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    55 ofertas

    Necesito el desarrollo de una interfaz gráfica para un programa que hemos estado desarrollando, apesar que ya cuenta con una necesito mejorarla y modernizarla. El desarrollador debe ser proficiente en PyQt5 yJava Script

    $379 (Avg Bid)
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    21 ofertas

    Estamos en camino de migrar información, que se alojo por años en Excel a un sistema mucho mas moderno. Somos una empresa en el rubro de construcción, la cual busca diseñar/crear un sistema de trabajo que se pueda trabajar en remoto y en la empresa localmente. Allí la idea es alojar OT de trabajo, stock, almacenes, compras etc. Disponíamos de un sistema el cual se caía frecuentemente, asique postulantes favor de enviar portafolios con productos funcionando hoy en día. Inicialmente es crear un sistema, pero tenemos mucho mas trabajo a futuro. Saludos

    $571 (Avg Bid)
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    31 ofertas

    busco creadores de mods para el ark dev kit juego

    $69 (Avg Bid)
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    3 ofertas
    crear una api 2 días left

    una api que almacene toquen y y almacenarlo en una base de datos

    $101 (Avg Bid)
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    22 ofertas
    python bot 2 días left
    VERIFICADO

    A automated bot for diablo immortal. Me must know how to manage monster, identify objects and zones and act.

    $185 (Avg Bid)
    $185 Oferta promedio
    27 ofertas
    GPS - Cálculo de tiempos en track 2 días left
    VERIFICADO

    Subir un fichero GPX de un track o recorrido a nuestro servidor Varios dispositivos GPS envían posiciones a Flespi. Se requiere, recuperar datos de Flespi Calcular en tiempo real la distancia al punto final del recorrido a través del recorrido de cada dispositivo Calcular la diferencia de tiempo entre cada dispositivo Enviar la ubicación de cada dispositivo a otra APP que tiene su propia API Enviar el resultado de los cálculos a esta APP

    $263 (Avg Bid)
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    16 ofertas

    Necesito un programa experto en (tiene que ser en esa plataforma), para la administración completa de un site de un Club. Necesito varios formularios para registrar a las personas, así como diferentes niveles de acceso para poder acceder y modificar, sacar estadísticas, etc....

    $441 (Avg Bid)
    $441 Oferta promedio
    26 ofertas
    necesito programador react native 60 día left
    VERIFICADO

    Necesito programador que me pueda ayudar a terminar rapido una aplicacion de react native, cuento con trabajo continuo si se logra una relacion laboral exitosa.

    $30 - $250
    Sellado
    $30 - $250
    36 ofertas
    Fix 406 Http error 6 días left
    VERIFICADO

    Fix 406 Http error , it is preventing us to fetch the website

    $13 (Avg Bid)
    $13 Oferta promedio
    14 ofertas
    VIDEO PLAYER Like Youtube Player 6 días left
    VERIFICADO

    I need video player for my video platform which can manage some functionalities change subtitles for different languages. Place Advertising in seected secund. MKV HLS Converting functionality. Changing video size options Same functionalities youtube and netflix players

    $1368 (Avg Bid)
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    34 ofertas
    Posts showing 6 días left

    I have a templete of Gatsby website and need to present post's list on the custom page, and them open each post. All Posts logic is in the project, also UI. Just need to implement Posts in the custom page

    $24 (Avg Bid)
    $24 Oferta promedio
    3 ofertas

    Criar uma função em Nodejs que recebe um array de Urls, baixa os arquivos, compacta e retorna em um arquivo compactado

    $27 (Avg Bid)
    $27 Oferta promedio
    7 ofertas
    railway.app: POST / FETCH problem 6 días left
    VERIFICADO

    Need assistance with the problem of getting my app working. It's working on localhost but I cannot make it work on the railway.app. Here are screenshots of the problem:

    $18 (Avg Bid)
    $18 Oferta promedio
    14 ofertas
    Shopify Customization 6 días left
    VERIFICADO

    We need customization on Shopify Theme - front end changes such as : 1. Resizing of sections 2. Creating category circles 3. Adding promotion section in products page And a few more UI customisations We also need to improve website load time and performance.

    $104 (Avg Bid)
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    33 ofertas

    The script could be integrated within a bat file which can be ran at the beginning of app usage and it should provide output data regarding CPU and RAM consumption while running said app.

    $152 (Avg Bid)
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    project title : one platform project front end: react js project back end: spring boot database: mysql/mongodb problem statement: A customer can have different bank accounts across different banks. Our main aim is to create a common platform so that a customer can access and manage all his bank accounts from the same application. The platform will provide the options to customers for using the banking features of the bank like money-transfer, transactions history, credit cards management etc. customers do not have to download and sign up for each bank's app they have account with. One platform app supports all bank's credit or debit cards

    $15 (Avg Bid)
    $15 Oferta promedio
    4 ofertas

    We are developing a lifestyle/time-management app for Android and iOS and have the majority of the functionality already done. We are looking to make some additional changes to the codebase but 80% of these are visual changes. The changes are drawn out in Figma. We use C#/.NET, React Native JS, MSSQL for the db. We have integrations with Google Maps, Stripe Payments, SendinBlue emails, and Twilio SMS.

    $928 - $1855
    Sellado Acuerdo de Confidencialidad
    $928 - $1855
    53 ofertas
    Need UI Screens in React 6 días left
    VERIFICADO

    I have designs of screens and need a candidate who can create EXACT UI screens in React with basic UI functionality like tabs and side drawers. I am attaching a sample screen here for reference.

    $144 (Avg Bid)
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    30 ofertas

    we have core php need to create desktop application for this project we want desktop solution for web browser website please connect interested only thanks

    $13 (Avg Bid)
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    3 ofertas

    Expert in catpcha like google and cloudflare need for develop node js proxy

    $1096 (Avg Bid)
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    58 ofertas
    I need to reverse a JS script 6 días left
    VERIFICADO

    I need to reverse some JS, I need to be able to read.

    $150 (Avg Bid)
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    54 ofertas

    urgently requirement for React js and React Native developer 2 to 3 years experience salary 6 LPA to 10 LPA ( do not apply if you are a company and agency ) ( ONLY FOR INDIA , INDORE )

    $743 (Avg Bid)
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    16 ofertas

    Hi Our website frontend on React requires few fixes and adjustments as per PSD, be noted its not development work but simple adjustment to existing websites so come with accordingly bids, will share documents about required changes with final candidate only. Write COAL at start of bid ... Thanks

    $31 (Avg Bid)
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    35 ofertas
    Blockly/scratch 6 días left
    VERIFICADO

    I am seeking a proficient front-end developer who has proficiency in using Blockly/Scratch libraries to develop a project similar to the one found at this link "". Customization capability is crucial for this project. I would only consider hiring the developer if they could provide me with an exact video showing the example mentioned in the above link. Once they send the video i will hire them . I dont want anyone to send code before being hired, i just want a video recording of his work .if you are not familiar with Blockly or Scratch libraries, kindly refrain from applying for this position.

    $198 (Avg Bid)
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    13 ofertas

    Hello. I need to implement theme for my system, the theme is ready made so no designing stuff is needed, the theme is built with React, NextJS, TypeScript, GrapQL, NextJS, and Tailwind CSS. The theme can be seen here: and other related information. The system which is used is PHP made multi-vendor ecommerce

    $520 (Avg Bid)
    $520 Oferta promedio
    49 ofertas

    We would like a simple program(script) that sits and waits to read from a USB RFID device the RFID card number and create a log. Type, ID, Date Time entrance, 09836735, 1/27/2023, 13:00 if when the card reads and the ID and date already is there then it automatically makes it as type exit Type, ID, Date Time exit, 09836735, 1/27/2023, 18:00 where the log can be something like this: Type, ID, Date Time entrance, 09836735, 1/27/2023, 13:00 entrance, 00063534, 1/27/2023, 13:10 entrance, 00036735, 1/27/2023, 14:30 entrance, 01068834, 1/27/2023, 15:10 exit, 09836735, 1/27/2023, 18:00 exit, 00036735, 1/27/2023, 18:30 at the end of the day the log is stored as a text delimited file with the filename of the date

    $179 (Avg Bid)
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    Zombie clash NEON EVENT!!! 6 días left
    VERIFICADO

    It's a ROBLOX simulator. Where you fight zombies with your powers if you beat the level you go to the next level every level gets harder and harder. When you die you respawn at the beginning and depending on how far you got that is the number of coins you get there are pets and powers and please make it a neon theme. Also, can you make intro and logo?

    $119 (Avg Bid)
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    You must be a Linode expert and complete this project quickly. The successful freelancer will be chosen on ability to deliver very quickly and on price. This project is to take the files that I send you and upload them so that the website is fully functional for admin, students and tutors. I have a website that a previous developer took down. I want it re-uploaded. I want you to make sure that the database is also uploaded with the website. Note, with the backend, you will have to install node_modules in backend project My hosting is on Linode and so Linode expertise is required. I can send you the backend and front end backups. Our website uses JavaScript. MEAN stack & Angular version 10.0.11. We also currently also have Stripe and PayPal for both students payments in and tutor pa...

    $169 (Avg Bid)
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    25 ofertas

    Good day, i please need help to fix a script that runs a database query on Wordpress. The target site is: This script worked without issues until some weeks ago. Now the requests do not work. If you type: - August L [..] - 2914 You should receive a positive result site. However, the script is pending. Also the requests are not stored anymore in database (see screenshot). The script was working without any issues until some weeks ago. The problem may be connected with changing PHP from 7.4 to 8.1. In the attachment you will find the active wordpress plugin. These are the rules for our cooperation - Read my task carefully - Check files careful - Make your final bid (no initial bid or hourly rate) - There will be no re-negotiation, the final bid counts - You will be awarded fo...

    $26 (Avg Bid)
    $26 Oferta promedio
    27 ofertas

    Ecommerce project with simple page modules

    $234 (Avg Bid)
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    14 ofertas
    PHP/MySQL/HTML Developers 6 días left
    VERIFICADO

    We are hiring two PHP/MySQL/HTML developers to join us to develop PHP programs. The candidates must have minimum of 3 years tracked record of web application experience with the following: 1. tertiary qualification; 2. hardworking; 3. commitment; 4. integrated; 5. great problem solving skills based on requirement. Please send us CV to qualify the job.

    $390 (Avg Bid)
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    121 ofertas
    Buid a webapp 6 días left
    VERIFICADO

    I need someone who can buid me a webapp which can allow me to split big files in multiple small chunks. Please read all details in attached document.

    $245 (Avg Bid)
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    38 ofertas

    Project Definition 1. Write software that reads the CSV data (of books, magazines, and authors) given on the next page. 2. Print out all books and magazines (on either console UI) with all their details (with a meaningful output format). 3. Find a book or magazine by its ISBN. 4. Find all books and magazines by their authors’ email. 5. Print out all books and magazines with all their details sorted by title. This sort should be done for books and magazines together. 6. Add a book and a magazine to the data structure of your software and export it to a new CSV file. 7. Write Unit tests for one or more methods. 8. Implement an interactive UI for one or more of the main tasks mentioned above. 9. We prefer TypeScript over Javascript and hence there are extra credits for TypeScript. 2nd ...

    $13 (Avg Bid)
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    6 ofertas

    From our web application we need to print a section of a google map container with all of it's children elements. We want to preserve as much formatting as possible. And rotate/trasnform the markers as necessary. We have a web in angular. We display a google map with an overlay image and multiple markers. We want to be able to print the overlay along with the markers displayed on the map.

    $477 (Avg Bid)
    Acuerdo de Confidencialidad
    $477 Oferta promedio
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    Looking for ServiceNow HRSD Service App Engine Developer (Contract Role) with following + 4 Years of Relevant experience: · As center of excellence (COE) involve in ServiceNow HRSD module(s) implementation · Expertise in using ServiceNow App Engine · Expertise in Java Scripting language · Refine the HR Service Delivery requirements with appropriate technical end-user solutions, Creating user stories. Interested candidates can send their CV to

    $842 (Avg Bid)
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    3 ofertas

    Hello dear , i want to make a website that gives a balance amount for each youtube video watched on the application , should use angular 9 with mysql and have a good structure

    $253 (Avg Bid)
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    Project Scope - Introduction Converting existing Flash Player App to a Web Based Graphical User Interface for showing Money Exchange Rates on a Dynamic Adjusting Background. Modules - Requirement Single Page Web Application (SPA) which will be run on a LAN server on the existing address and port as the current Flash Player. 1. HTML to fetch data from .csv (folder location in same server) - Folder location (CSV) to be created (as shown in the chart below) and synced with HTML (inside tabular) to fetch data. (Note: data should be fetched every 10secs buffer time refresh) 2. Ability to adjust font sizes and the maximum number of rows to show(30 countries). By default, the adjustment in terms of rows will be automatically based on the number of currencies available. 3. The font size can...

    $544 (Avg Bid)
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    36 ofertas

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