rOACCT/node_modules/tslib66f34df107aaissn4frontend
tslib
README.md
tslib
This is a runtime library for TypeScript that contains all of the TypeScript helper functions.
This library is primarily used by the --importHelpers flag in TypeScript. When using --importHelpers, a module that uses helper functions like __extends and __assign in the following emitted file:
ts
var __assign = (this && this.__assign) || Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
exports.x = {};
exports.y = __assign({}, exports.x);will instead be emitted as something like the following:
ts
var tslib_1 = require("tslib");
exports.x = {};
exports.y = tslib_1.__assign({}, exports.x);Because this can avoid duplicate declarations of things like __extends, __assign, etc., this means delivering users smaller files on average, as well as less runtime overhead. For optimized bundles with TypeScript, you should absolutely consider using tslib and --importHelpers.
Installing
For the latest stable version, run:
npm
sh # TypeScript 2.3.3 or later npm install tslib # TypeScript 2.3.2 or earlier npm install tslib@1.6.1
yarn
sh # TypeScript 2.3.3 or later yarn add tslib # TypeScript 2.3.2 or earlier yarn add tslib@1.6.1
bower
sh # TypeScript 2.3.3 or later bower install tslib # TypeScript 2.3.2 or earlier bower install tslib@1.6.1
JSPM
sh # TypeScript 2.3.3 or later jspm install tslib # TypeScript 2.3.2 or earlier jspm install tslib@1.6.1
Usage
Set the importHelpers compiler option on the command line:
tsc --importHelpers file.ts
or in your tsconfig.json:
json
{
"compilerOptions": {
"importHelpers": true
}
}For bower and JSPM users
You will need to add a paths mapping for tslib, e.g. For Bower users:
json
{
"compilerOptions": {
"module": "amd",
"importHelpers": true,
"baseUrl": "./",
"paths": {
"tslib" : ["bower_components/tslib/tslib.d.ts"]
}
}
}For JSPM users:
json
{
"compilerOptions": {
"module": "system",
"importHelpers": true,
"baseUrl": "./",
"paths": {
"tslib" : ["jspm_packages/npm/tslib@1.[version].0/tslib.d.ts"]
}
}
}Contribute
There are many ways to contribute to TypeScript.
- Submit bugs and help us verify fixes as they are checked in.
- Review the source code changes.
- Engage with other TypeScript users and developers on StackOverflow.
- Join the #typescript discussion on Twitter.
- Contribute bug fixes.