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node_modules/loader-utils/README.md

@@ -23,8 +23,8 @@ If you pass it on to another library, make sure to make a *deep copy* of it:
 ```javascript
 const options = Object.assign(
 	{},
-	loaderUtils.getOptions(this), // it is safe to pass null to Object.assign()
-	defaultOptions
+	defaultOptions,
+	loaderUtils.getOptions(this) // it is safe to pass null to Object.assign()
 );
 // don't forget nested objects or arrays
 options.obj = Object.assign({}, options.obj); 
@@ -32,7 +32,7 @@ options.arr = options.arr.slice();
 someLibrary(options);
 ```
 
-[clone-deep](https://www.npmjs.com/package/clone-deep) is a good library to make a deep copy of the options.
+[clone](https://www.npmjs.com/package/clone) is a good library to make a deep copy of the options.
 
 #### Options as query strings
 
@@ -115,6 +115,21 @@ loaderUtils.stringifyRequest(this, "\\\\network-drive\\test.js");
 
 Converts some resource URL to a webpack module request.
 
+> i Before call `urlToRequest` you need call `isUrlRequest` to ensure it is requestable url
+
+```javascript
+const url = "path/to/module.js";
+
+if (loaderUtils.isUrlRequest(url)) {
+  // Logic for requestable url
+  const request = loaderUtils.urlToRequest(url);
+} else {
+  // Logic for not requestable url
+}
+```
+
+Simple example:
+
 ```javascript
 const url = "path/to/module.js";
 const request = loaderUtils.urlToRequest(url); // "./path/to/module.js"
@@ -164,6 +179,11 @@ The following tokens are replaced in the `name` parameter:
 * `[folder]` the folder of the resource is in.
 * `[emoji]` a random emoji representation of `options.content`
 * `[emoji:<length>]` same as above, but with a customizable number of emojis
+* `[contenthash]` the hash of `options.content` (Buffer) (by default it's the hex digest of the md5 hash)
+* `[<hashType>:contenthash:<digestType>:<length>]` optionally one can configure
+  * other `hashType`s, i. e. `sha1`, `md5`, `sha256`, `sha512`
+  * other `digestType`s, i. e. `hex`, `base26`, `base32`, `base36`, `base49`, `base52`, `base58`, `base62`, `base64`
+  * and `length` the length in chars
 * `[hash]` the hash of `options.content` (Buffer) (by default it's the hex digest of the md5 hash)
 * `[<hashType>:hash:<digestType>:<length>]` optionally one can configure
   * other `hashType`s, i. e. `sha1`, `md5`, `sha256`, `sha512`
@@ -171,6 +191,8 @@ The following tokens are replaced in the `name` parameter:
   * and `length` the length in chars
 * `[N]` the N-th match obtained from matching the current file name against `options.regExp`
 
+In loader context `[hash]` and `[contenthash]` are the same, but we recommend using `[contenthash]` for avoid misleading.
+
 Examples
 
 ``` javascript
@@ -178,6 +200,10 @@ Examples
 loaderUtils.interpolateName(loaderContext, "js/[hash].script.[ext]", { content: ... });
 // => js/9473fdd0d880a43c21b7778d34872157.script.js
 
+// loaderContext.resourcePath = "/app/js/javascript.js"
+loaderUtils.interpolateName(loaderContext, "js/[contenthash].script.[ext]", { content: ... });
+// => js/9473fdd0d880a43c21b7778d34872157.script.js
+
 // loaderContext.resourcePath = "/app/page.html"
 loaderUtils.interpolateName(loaderContext, "html-[hash:6].html", { content: ... });
 // => html-9473fd.html