var query = loaderUtils.parseQuery(this.query);
assert(typeof query == "object");
if(query.flag)
// ...null -> {}
? -> {}
?flag -> { flag: true }
?+flag -> { flag: true }
?-flag -> { flag: false }
?xyz=test -> { xyz: "test" }
?xyz[]=a -> { xyz: ["a"] }
?flag1&flag2 -> { flag1: true, flag2: true }
?+flag1,-flag2 -> { flag1: true, flag2: false }
?xyz[]=a,xyz[]=b -> { xyz: ["a", "b"] }
?a%2C%26b=c%2C%26d -> { "a,&b": "c,&d" }
?{json:5,data:{a:1}} -> { json: 5, data: { a: 1 } }
Makes a request pretty and stringifies it. Absolute paths are replaced with relative ones.
Use it instead of JSON.stringify(...) to build code of a require(...) call in a loader.
loaderUtils.stringifyRequest(this, require.resolve("./test"));
// = "../node_modules/some-loader/lib/test.js"Converts some resource URL to a webpack module request.
var url = "path/to/module.js";
var request = loaderUtils.urlToRequest(url); // "./path/to/module.js"Any URL containing a ~ will be interpreted as a module request. Anything after the ~ will be considered the request path.
var url = "~path/to/module.js";
var request = loaderUtils.urlToRequest(url); // "path/to/module.js"URLs that are root-relative (start with /) can be resolved relative to some arbitrary path by using the root parameter:
var url = "/path/to/module.js";
var root = "./root";
var request = loaderUtils.urlToRequest(url, root); // "./root/path/to/module.js"To convert a root-relative URL into a module URL, specify a root value that starts with ~:
var url = "/path/to/module.js";
var root = "~";
var request = loaderUtils.urlToRequest(url, root); // "path/to/module.js"Interpolates a filename template using multiple placeholders and/or a regular expression.
The template and regular expresion are set as query params called name and regExp on the current loader's context.
var interpolatedName = loaderUtils.interpolateName(loaderContext, name, options);The following tokens are replaced in the name parameter:
[ext]the extension of the resource[name]the basename of the resource[path]the path of the resource relative to thecontextquery parameter or option.[hash]the hash ofoptions.content(Buffer) (by default it's the hex digest of the md5 hash)[<hashType>:hash:<digestType>:<length>]optionally one can configure- other
hashTypes, i. e.sha1,md5,sha256,sha512 - other
digestTypes, i. e.hex,base26,base32,base36,base49,base52,base58,base62,base64 - and
lengththe length in chars
- other
[N]the N-th match obtained from matching the current file name againstoptions.regExp
Examples
// loaderContext.resourcePath = "/app/js/javascript.js"
loaderUtils.interpolateName(loaderContext, "js/[hash].script.[ext]", { content: ... });
// => js/0dcbbaa701328a3c262cfd45869e351f.script.js
// loaderContext.resourcePath = "/app/page.html"
loaderUtils.interpolateName(loaderContext, "html-[hash:6].html", { content: ... });
// => html-109fa8.html
// loaderContext.resourcePath = "/app/flash.txt"
loaderUtils.interpolateName(loaderContext, "[hash]", { content: ... });
// => c31e9820c001c9c4a86bce33ce43b679
// loaderContext.resourcePath = "/app/img/image.png"
loaderUtils.interpolateName(loaderContext, "[sha512:hash:base64:7]", { content: ... });
// => gdyb21L.png
// use sha512 hash instead of md5 and with only 7 chars of base64
// loaderContext.resourcePath = "/app/img/myself.png"
// loaderContext.query.name =
loaderUtils.interpolateName(loaderContext, "picture.png");
// => picture.png
// loaderContext.resourcePath = "/app/dir/file.png"
loaderUtils.interpolateName(loaderContext, "[path][name].[ext]?[hash]", { content: ... });
// => dir/file.png?e43b20c069c4a01867c31e98cbce33c9
// loaderContext.resourcePath = "/app/js/page-home.js"
loaderUtils.interpolateName(loaderContext, "script-[1].[ext]", { regExp: "page-(.*)\\.js", content: ... });
// => script-home.jsvar digestString = loaderUtils.getHashDigest(buffer, hashType, digestType, maxLength);bufferthe content that should be hashedhashTypeone ofsha1,md5,sha256,sha512or any other node.js supported hash typedigestTypeone ofhex,base26,base32,base36,base49,base52,base58,base62,base64maxLengththe maximum length in chars
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