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About

JavaScript test coverage made simple. Istanbul instruments your ES5 and ES2015+ JavaScript code with line counters, so that you can track how well your unit-tests exercise your codebase. The nyc command-line-client for Istanbul works well with most JavaScript testing frameworks, tap, mocha, AVA, etc. First-class support of ES6/ES2015+ using babel-plugin-Istanbul. Support for the most popular JavaScript testing frameworks. Support for instrumenting subprocesses, using the nyc command-line interface. Adding coverage to your mocha tests could not be easier. Now, simply place the command nyc in front of your existing test command. nyc's instrument command can be used to instrument source files outside of the context of your unit tests. nyc is able to show you all Node processes that are spawned when running a test script under it. By default, nyc uses Istanbul's text reporter. However, you may specify an alternative reporter.

About

JavaScript is a scripting language and programming language for the web that enables developers to build dynamic elements on the web. Over 97% of the websites in the world use client-side JavaScript. JavaScript is one of the most important scripting languages on the web. Strings in JavaScript are contained within a pair of either single quotation marks '' or double quotation marks "". Both quotes represent Strings but be sure to choose one and STICK WITH IT. If you start with a single quote, you need to end with a single quote. There are pros and cons to using both IE single quotes tend to make it easier to write HTML within Javascript as you don’t have to escape the line with a double quote. Let’s say you’re trying to use quotation marks inside a string. You’ll need to use opposite quotation marks inside and outside of JavaScript single or double quotes.

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Not Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Supported
Mac Supported
Linux Supported
Cloud Supported
On-Premises Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Supported

Audience

Users in need of a tool to track how well their unit-tests exercise their codebase

Audience

Web developers and anyone looking for a mobile solution for running and developing web content

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Not Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

Free
Free Version Supported
Free Trial Not Supported

Pricing

Free
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

Istanbul
United States
istanbul.js.org

Company Information

JavaScript
Founded: 1995
United States
javascript.com

Alternatives

blanket.js

blanket.js

Blanket.js

Alternatives

Early

Early

EarlyAI
AssemblyScript

AssemblyScript

The AssemblyScript Project
RKTracer

RKTracer

RKVALIDATE

Categories

Code Coverage Supported

Categories

Integrations

Mocha Supported
Abliteration.ai Not Supported
Azure Static Web Apps Not Supported
Bunny Database Not Supported
Claude Sonnet 3.5 Not Supported
Codecov Not Supported
Codestral Not Supported
Gemini 3 Deep Think Not Supported
Grok 4.5 Not Supported
HollaEx Not Supported
Master PDF Editor Not Supported
Maya Not Supported
Meticulous Not Supported
Mobissue Not Supported
PayBitoPro Not Supported
The Welkin Suite Not Supported
TxContact Not Supported
UniOne Not Supported
UseScraper Not Supported
jsPDF Not Supported

Integrations

Mocha Supported
Abliteration.ai Supported
Azure Static Web Apps Supported
Bunny Database Supported
Claude Sonnet 3.5 Supported
Codecov Supported
Codestral Supported
Gemini 3 Deep Think Supported
Grok 4.5 Supported
HollaEx Supported
Master PDF Editor Supported
Maya Supported
Meticulous Supported
Mobissue Supported
PayBitoPro Supported
The Welkin Suite Supported
TxContact Supported
UniOne Supported
UseScraper Supported
jsPDF Supported
Claim Istanbul and update features and information
Claim Istanbul and update features and information
Claim JavaScript and update features and information
Claim JavaScript and update features and information