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Questions tagged [uglifyjs2]

A general-purpose JavaScript parser/compressor/beautifier toolkit developed on Node.js

112 questions
91
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7 answers

UglifyJS throws unexpected token: keyword (const) with node_modules

A small project I started make use a node module (installed via npm) that declares const variables. Running and testing this project is well, but browserify fails when UglifyJS is executed. Unexpected token: keyword (const) Here is a generic Gulp…
Yanick Rochon
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46
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8 answers

How to minify multiple Javascript files in a folder with UglifyJS?

Hello I'm using uglifyJs to minify my javascript files, it's working well with one file at a time, what I'm loking for is to minify all the javascript files present in a folder called JS into a folder called JSM, to be clear I have 2 files inside my…
OussamaLord
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41
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5 answers

Can uglify-js remove the console.log statements?

I'm using uglify-js to minify the source code. I want to remove the console.log statements of the original source code. Is it possible? Or is there any other compressor tool supports this? I use the code as below in Node.js. var uglify =…
Jeffrey
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27
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2 answers

How to exclude certain requireJS files from uglifying/optimizing

I have a working requirejs project that is using grunt for building and deployment. If using no optimization at all, the build is working without problems and I get one big js file to deploy it on production. The problem I have is, that I have some…
Marco Rinck
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15
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4 answers

Using UglifyJs on the whole Node project?

I need to obfuscate my source code as best as possible so I decided to use uglifyjs2.. Now I have the project structure that has nested directories, how can I run it through uglifyjs2 to do the whole project instead of giving it all the input…
Tolga E
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13
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5 answers

Failed to minify the code from this file

I am authoring a JavaScript library that I want to put on npm. I am currently using that library in another project and I have added it as a dependency using its GitHub repository: "dependencies": { // ... others "react-web-component":…
Lukas
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12
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2 answers

How to parse and iterate prototype methods with Uglify.js?

I 'd like to parse some JavasScript code to list all methods for a given "class" using uglify js 2. In my case the TreeWalker returns a node with name : null and there is no information that allow conclusions to parent. Does anyone know a different…
Stephan Ahlf
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11
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2 answers

Tell UglifyJS to skip a particular area of code

Is there a way to tell UglifyJS to skip a particular section of code, perhaps using comments like this: // uglifyjs:skipStart filter = function(item){ /* some crazy filter logic that will repeat 500,000 times */ } // uglifyjs:skipEnd My use case…
SimplGy
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9
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2 answers

Lodash not TreeShaking with Webpack with Webpack 4?

I want to tree shake lodash as well as my unused multiply function from the generated bundle from webpack I have 2 main files app.js & math.js It contains the following code - app.js import map from "lodash/map"; import { sum } from…
deadcoder0904
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9
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1 answer

Batch File Exits After Running One Node Application Script

I need to run several UglifyJS2 scripts with Node. I've added the command I want to run to a bat file and it runs OK. When I add a second command, like "cd ..", the command isn't executed! Very confusing. cd go somewhere uglifyjs ..\somescript -o…
Greg
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9
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3 answers

Uglify with SourceMaps while using grunt usemin and rev

I want to log javascript errors to server but the stacktrace is not useful with minified JS code. So I was thinking of using either Getsentry or Rollbar which shows proper stack trace with the help of sourcemaps. But I'm struggling to create…
IsmailS
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8
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1 answer

UglifyJS property mangling

According to the docs, UglifyJS can mangle all property names except those on a provided reserved list. Is it possible to do it the other way, so only properties on provided list will be mangled? If so, what options do I need to pass to…
Sebastian Nowak
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8
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5 answers

Mangle nested classes and variables with UglifyJS

I use UglifyJS to minify a concatenated set of files, which works fine but not good enough. The built lib uses namespaces, so classes, functions and constants are stored in a root namespace variable: (function() { var root = { api:{}, core:{},…
whadar
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7
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2 answers

Webpack's removes classnames when minifying/uglifying ES6 code with inheritance

Webpack's removes classnames when minifying/uglifying ES6 code with inheritance: There's MVCE code which we try to minify/uglify: Class Child: const ParentClass = require('parent'); class Child extends ParentClass{ constructor(){ …
Anatoly
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7
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1 answer

UglifyJS webpack plugin throws: Unexpected token: name (features)

I used to have problems with UglifyJS for Webpack and ES6 modules: ERROR in static/js/vendor.6ccd9e38979a78765c7a.js from UglifyJs Unexpected token: name (features) …
alex
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