#Gulp minify js code
This also has the added advantage that when you are testing your webpage at development time, you're actually running the minified code that you will end up deploying. Just make sure that the original unminified files are also being server by your web server so that the browser can download them. pipe(st('dist')) // Write the minified files. pipe(sourcemaps.write()) // Write the source maps.
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There are 2688 other projects in the npm registry using gulp-uglify.
#Gulp minify js how to
Start using gulp-uglify in your project by running npm i gulp-uglify. Learn how to Minify CSS files with Gulp JS to make it load faster. Due to some platform limitations, synchronous tasks aren't supported, though there is a pretty nifty alternative. pipe(minify()) // Do your minification, concatenation, etc. Latest version: 3.0.2, last published: 3 years ago. Each gulp task is an asynchronous JavaScript function - a function that accepts an error-first callback or returns a stream, promise, event emitter, child process, or observable ( more on that later ). pipe(sourcemaps.init()) // Initialize the source maps. Var sourcemaps = require('gulp-sourcemaps') Here's a simple example of how you would use it: var gulp = require('gulp') Then add following min-js task to your gulpfile.
#Gulp minify js install
You don't mention which gulp plugins you are using, but there's a good chance that they have support for source maps. First, Install gulp and gulp-minify to project directory locally npm install -save-dev gulp gulp-minify. Its implementation is just as straightforward, don’t forget to edit the exposed task so both HTML and Javascript get minified npm install -save-dev gulp-htmlmin. Gulp-sourcemaps is what you will need to use. All we need is a single dependency, gulp-htmlmin it’s all in the name really. If you do, you'll get something back like v8.9. First, enter node -v within your terminal to check and see if you have the Node installed. If you already have Node & npm installed, feel free to skip down to the Installing Gulp & gulp-imagemin Section.
The minified files have the -min.js extension. Alright, now that our directory is up and running let’s start installing our dependencies. The gulp-minify plugin minifies JS files. It helps automate such tasks as copying files, minifying JavaScript code, or compiling TypeScript to JavaScript. Developer tools (currently WebKit nightly builds, Google Chrome, or Firefox 23+) can parse the source map automatically and make it appear as though you're running unminified and uncombined files. It is a streaming build system in front-end web development. When you query a certain line and column number in your generated JavaScript you can do a lookup in the source map which returns the original location. When you build for production, along with minifying and combining your JavaScript files, you generate a source map which holds information about your original files. To use gulp, you need to create a file called gulpfile.js and save it at the root of your project. From that article:īasically it's a way to map a combined/minified file back to an unbuilt state.
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