tslib
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:
will instead be emitted as something like the following:
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
yarn
bower
JSPM
Usage
Set the importHelpers
compiler option on the command line:
or in your tsconfig.json:
For bower and JSPM users
You will need to add a paths
mapping for tslib
, e.g. For Bower users:
For JSPM users:
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.
Documentation
Last updated