A general-purpose JavaScript parser/compressor/beautifier toolkit developed on Node.js
Questions tagged [uglifyjs2]
112 questions
0
votes
1 answer
Can I beautify javascript with uglifyjs via API?
Can I programmaticaly beautify JavaScript code with UglifyJS library? When I try to use something like
var uglifyjs = require('uglify-js');
...
var options = { compress: false, mangle: false, beautify: true };
var code = uglifyjs(source,…
Ivan Shatsky
- 6,428
- 2
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0 answers
How to minify legacy javascript libraries (ES6)
I have several legacy JS libraries for a website that I would like to minify (and ideally also concatenate into one bundle). However, since the libraries use ES6 syntax I cannot simply use uglify-js on command line and minify since it requires the…
kashiraja
- 632
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- 17
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1 answer
Uglify.js - how to mangle just SOME global variable/function names (using Grunt)
Hi,
I'm using Grunt and Uglify.js to mangle my code and I found out that by default the global function/variable names are not mangled, which makes sense.
I then found out, that there is a way on how to mangle them with using some settings but than…
Oliver Goossens
- 1,823
- 3
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0 answers
How to handle react set state using dictionary syntax with uglify?
React's documentation has handle change function which retrieves object key at the run time.
https://reactjs.org/docs/forms.html#handling-multiple-inputs
I have similar;
//handles state change
handleChange = prop => event => {
…
Mohamed
- 1,129
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0
votes
1 answer
Is it possible to stop UglifyJS from injecting "_" as a replacement name?
Is there a way to configure Uglify with a blacklist of strings that should not be injected during replacement?
For example, Uglify is currently replacing TypeError with _:
TypeError("Promise can't be resolved") => _("Promise can't be resolved").…
ssw
- 143
- 1
- 4
0
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1 answer
Webpack's UglifyJsPlugin throws error with Node modules containing let
This is the relevant code (I'm using Vue.js' Webpack official template):
.babelrc:
"presets": [
"babel-preset-es2015",
"babel-preset-stage-2",
]
webpack.prod.config.js
new webpack.optimize.UglifyJsPlugin({
compress: {
warnings: false,
…
alex
- 5,551
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0
votes
0 answers
How to mangle class names
How could I mangle class names like this (ES6)
export class MyClass{....}
using UglifyJS? I've already played around enough with different mangle options and combinations given in the API but still, no avail. On google search, almost all of the…
Desu
- 567
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- 14
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votes
1 answer
UglifyJS Can't use regex
From here, I can't seem to use this
uglifyjs mtool.js -c -m --mangle-props regex=/_$/ -o mtool.min.js
as it produces an error:
ERROR: regex.test is not a function
at should_mangle (eval at …
Desu
- 567
- 1
- 6
- 14
0
votes
0 answers
UglifyJs output line length restriction
I am using the following snippets while building my react based application with webpack. I need to restrict the max line length of the output file to 7000 characters and the below config helps do it except if there is a CSS line in the bundle. The…
0
votes
1 answer
How to configure UglifyJS 2 to only concatenate in C#?
I'm using UglifyJS2 for the Bundle Transformer NuGet package within my C# project and I just want to be able to concatenate my JS files without minifying them for my QA environment, but I can't figure out how to do it. Is it possible?
Here is my…
adam0101
- 23,476
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0
votes
0 answers
UglifyJS trying to mangle RamdaJS produces error
I am trying to mangle my code using UglifyJS.
The libraries i include are (some) Ramda, React, Underscore, react-select ...
However when i mangle the code, in RamdaJS "output" section it gives me the error :
First argument to arity must be…
Razvan
- 670
- 3
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0
votes
1 answer
uglifyjs mangle props ".source" error
I have some problems using UglifyJS.
When i am using uglifyjs with this command:
uglifyjs -o live_ugly.js --compress --mangle-props 1 --mangle -r "$,require,exports" live.js
I gives me an error : Cannot read property 'source' of undefined
The code…
Razvan
- 670
- 3
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0
votes
1 answer
Babel transforming new Request (fetch-api) to function call, causing errors in Chrome
I wrote a separate API library that I'm keeping as pure ES6 (with generators, etc) but it relies on the isomorphic-fetch library (so it can be used in both node and browser contexts).
When importing it with webpack 2 in another project, everything…
Alexander Mattoni
- 425
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votes
1 answer
Why does UglifyJS transpile `someFunction` to `(0, v.someFunction)`?
I'm using UglifyJS to transpile a React web app, and I noticed that it seems to wrap a lot of function calls, specifically functions imported from another module/file, with (0, and ). What is the point of this?
Example: It transpiles this
var…
ahstro
- 3,832
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0
votes
1 answer
UglifyJS2 call minify function programmatically
I would like to know if I can call the minify main function programmatically.
I am able to run the same code as defined in compress, however replacing UglifyJS.Compressor with UglifyJS.minify does not work.
This is because I would like to pass the…
nha
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