98 lines
2.3 KiB
Markdown
98 lines
2.3 KiB
Markdown
Overview [](https://travis-ci.org/lydell/source-map-url)
|
|
========
|
|
|
|
[](https://ci.testling.com/lydell/source-map-url)
|
|
|
|
Tools for working with sourceMappingURL comments.
|
|
|
|
```js
|
|
var sourceMappingURL = require("source-map-url")
|
|
|
|
var code = [
|
|
"!function(){...}();",
|
|
"/*# sourceMappingURL=foo.js.map */"
|
|
].join("\n")
|
|
|
|
sourceMappingURL.existsIn(code)
|
|
// true
|
|
|
|
sourceMappingURL.getFrom(code)
|
|
// foo.js.map
|
|
|
|
code = sourceMappingURL.insertBefore(code, "// License: MIT\n")
|
|
// !function(){...}();
|
|
// // License: MIT
|
|
// /*# sourceMappingURL=foo.js.map */
|
|
|
|
code = sourceMappingURL.removeFrom(code)
|
|
// !function(){...}();
|
|
// // License: MIT
|
|
|
|
sourceMappingURL.existsIn(code)
|
|
// false
|
|
|
|
sourceMappingURL.getFrom(code)
|
|
// null
|
|
|
|
code += "//# sourceMappingURL=/other/file.js.map"
|
|
// !function(){...}();
|
|
// // License: MIT
|
|
// //# sourceMappingURL=/other/file.js.map
|
|
```
|
|
|
|
|
|
Installation
|
|
============
|
|
|
|
- `npm install source-map-url`
|
|
- `bower install source-map-url`
|
|
- `component install lydell/source-map-url`
|
|
|
|
Works with CommonJS, AMD and browser globals, through UMD.
|
|
|
|
|
|
Usage
|
|
=====
|
|
|
|
### `sourceMappingURL.getFrom(code)` ###
|
|
|
|
Returns the url of the sourceMappingURL comment in `code`. Returns `null` if
|
|
there is no such comment.
|
|
|
|
### `sourceMappingURL.existsIn(code)` ###
|
|
|
|
Returns `true` if there is a sourceMappingURL comment in `code`, or `false`
|
|
otherwise.
|
|
|
|
### `sourceMappingURL.removeFrom(code)` ###
|
|
|
|
Removes the sourceMappingURL comment in `code`. Does nothing if there is no
|
|
such comment. Returns the updated `code`.
|
|
|
|
### `sourceMappingURL.insertBefore(code, string)` ###
|
|
|
|
Inserts `string` before the sourceMappingURL comment in `code`. Appends
|
|
`string` to `code` if there is no such comment.
|
|
|
|
Lets you append something to a file without worrying about burying the
|
|
sourceMappingURL comment (by keeping it at the end of the file).
|
|
|
|
### `sourceMappingURL.regex` ###
|
|
|
|
The regex that is used to match sourceMappingURL comments. It matches both `//`
|
|
and `/**/` comments, thus supporting both JavaScript and CSS.
|
|
|
|
|
|
Tests
|
|
=====
|
|
|
|
Start by running `npm test`, which lints the code and runs the test suite in Node.js.
|
|
|
|
To run the tests in a browser, run `testling` (`npm install -g testling`) or `testling -u`.
|
|
|
|
|
|
License
|
|
=======
|
|
|
|
[The X11 (“MIT”) License](LICENSE).
|