Erik Römmelt 5d28bc36e1 node_modules updated, buefy add to lib folder | 5 years ago | |
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This is a polyfill of the ES6 Promise. The implementation is a subset of rsvp.js extracted by @jakearchibald, if you’re wanting extra features and more debugging options, check out the full library.
For API details and how to use promises, see the JavaScript Promises HTML5Rocks article.
To install:
npm install es6-promise
To use:
var Promise = require('es6-promise').Promise;
To install:
bower install es6-promise --save
catch
is a reserved word in IE<9, meaning promise.catch(func)
throws a syntax error. To work around this, you can use a string to access the property as shown in the following example.
However, please remember that such technique is already provided by most common minifiers, making the resulting code safe for old browsers and production:
promise['catch'](function(err) {
// ...
});
Or use .then
instead:
promise.then(undefined, function(err) {
// ...
});
To polyfill the global environment (either in Node or in the browser via CommonJS) use the following code snippet:
require('es6-promise').polyfill();
Notice that we don’t assign the result of polyfill()
to any variable. The polyfill()
method will patch the global environment (in this case to the Promise
name) when called.
You will need to have PhantomJS installed globally in order to run the tests.
npm install -g phantomjs
npm run build
to buildnpm test
to run testsnpm start
to run a build watcher, and webserver to testnpm run test:server
for a testem test runner and watching builder