gulp-traceur's Introduction

gulp-traceur

Traceur is a JavaScript.next to JavaScript-of-today compiler

Issues with the output should be reported on the Traceur issue tracker.

Install

$ npm install --save-dev gulp-traceur

Usage

var gulp = require('gulp');
var traceur = require('gulp-traceur');

gulp.task('default', function () {
	return gulp.src('src/app.js')
		.pipe(traceur({sourceMap: true}))
		.pipe(gulp.dest('dist'));
});

API

traceur(options)

Options are passed through to Traceur, except for options.filename which is set for you.

options

Source Maps

Use gulp-sourcemaps like this:

var gulp = require('gulp');
var sourcemaps = require('gulp-sourcemaps');
var traceur = require('gulp-traceur');
var concat = require('gulp-concat');

gulp.task('default', function () {
    return gulp.src('src/*.js')
        .pipe(sourcemaps.init())
            .pipe(traceur())
            .pipe(concat('all.js'))
        .pipe(sourcemaps.write())
        .pipe(gulp.dest('dist'));
});

modules

Type: string Default: commonjs Values: see traceur modules option

By default, gulp-traceur treats all files as modules. This allows use of the export, module and import syntax. In this way the transformer can be used to compile ES6 for AMD or Node.js environments.