Dojo 2 core
This package provides a set of language helpers, utility functions, and classes for writing TypeScript applications. It includes APIs for feature detection, asynchronous operations, basic event handling, and making HTTP requests.
@dojo/core, install the package along with its required peer dependencies:
npm install @dojo/core # peer dependencies npm install @dojo/has npm install @dojo/shim
- Feature Detection
- Language Utilities
- Event Handling
- HTTP Requests
- Promises and Asynchronous Operations
Using the latest Web technologies isn't always as straightforward as developers would like due to differing support across platforms.
@dojo/core/has provides a simple feature detection API that makes it easy to
detect which platforms support which features.
The core package provides modules offering language utilities. Some of these are heavily based on methods in the ES2015 proposal; others are additional APIs for commonly-performed tasks.
@dojo/core/array module contains analogs to some of the ES2015 Array APIs.
@dojo/core/lang module contains various utility functions for tasks such as copying objects
and creating late-bound or partially applied functions.
@dojo/core/load module can be used to dynamically load modules or other arbitrary resources via plugins.
@dojo/core/math module contains analogs to a number of ES2015 APIs, including many trigonometric and logarithmic functions.
@dojo/core/stringExtras module contains various string functions that are not available as part of the ES2015 String APIs.
@dojo/core/UrlSearchParams class can be used to parse and generate URL query strings.
@dojo/core/on module contains methods to handle events across types of listeners. It also includes methods to handle different event use cases including only firing
once and pauseable events.
@dojo/core/request module contains methods to simplify making HTTP requests. It can handle
making requests in both node and the browser through the same methods.
Promises and Asynchronous Operations
@dojo/core/Promise class is an implementation of the ES2015 Promise API that also includes static state inspection and a
finally method for cleanup actions.
@dojo/core/async contains a number of classes and utility modules to simplify working with asynchronous operations.
@dojo/core/async/Task class is an extension of
@dojo/core/Promise that provides cancelation support.
How Do I Contribute?
We appreciate your interest! Please see the Dojo 2 Meta Repository for the Contributing Guidelines.
This repository uses
prettier for code styling rules and formatting. A pre-commit hook is installed automatically and configured to run
prettier against all staged files as per the configuration in the project's
An additional npm script to run
prettier (with write set to
true) against all
test project files is available by running:
npm run prettier
To start working with this package, clone the repository and run
In order to build the project run
grunt dev or
Test cases MUST be written using Intern using the Object test interface and Assert assertion interface.
90% branch coverage MUST be provided for all code submitted to this repository, as reported by istanbul’s combined coverage results for all supported platforms.
To test locally in node run:
To test against browsers with a local selenium server run:
To test against BrowserStack or Sauce Labs run:
Some string functions (
repeat) adopted from polyfills by Mathias Bynens,
under the MIT license.
See LICENSE for details.