Apply the jshint loader as pre/postLoader in your webpack configuration:
module.exports = {
module: {
preLoaders: [
{
test: /\.js$/, // include .js files
exclude: /node_modules/, // exclude any and all files in the node_modules folder
loader: "jshint-loader"
}
]
},
// more options in the optional jshint object
jshint: {
// any jshint option http://www.jshint.com/docs/options/
// i. e.
camelcase: true,
// jshint errors are displayed by default as warnings
// set emitErrors to true to display them as errors
emitErrors: false,
// jshint to not interrupt the compilation
// if you want any file with jshint errors to fail
// set failOnHint to true
failOnHint: false,
// custom reporter function
reporter: function(errors) { }
}
}By default, jshint-loader will provide a default reporter.
However, if you prefer a custom reporter, pass a function under the reporter key in jshint options. (see usage above)
The reporter function will be passed an array of errors/warnings produced by jshint with the following structure:
[
{
id: [string, usually '(error)'],
code: [string, error/warning code],
reason: [string, error/warning message],
evidence: [string, a piece of code that generated this error]
line: [number]
character: [number]
scope: [string, message scope;
usually '(main)' unless the code was eval'ed]
[+ a few other legacy fields that you don't need to worry about.]
},
// ...
// more errors/warnings
]The reporter function will be excuted with the loader context as this. You may emit messages using this.emitWarning(...) or this.emitError(...). See webpack docs on loader context.
Note: jshint reporters are not compatible with jshint-loader! This is due to the fact that reporter input is only processed from one file; not multiple files. Error reporting in this manner differs from tranditional reporters for jshint since the loader plugin (i.e. jshint-loader) is executed for each source file; and thus the reporter is executed for each file.
The output in webpack CLI will usually be:
...
WARNING in ./path/to/file.js
<reporter output>
...