Automatically concat several JavaScript files in one?

Question

I have many js files, with some naming convention. If there any tool that concatenate all this files in one, so I don't need to include them all separately ?

What exactly do you mean with automatically? On build? Pre deployment? On page request? — anddoutoi, Mar 10 '10 at 16:24

score 1 · Answer 1 · answered Mar 10 '10 at 16:22

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Something like:

$> cat file1.js file2.js ... > allfiles.js

?

answered Mar 10 '10 at 16:22

anddoutoi

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score 1 · Accepted Answer · answered Mar 10 '10 at 16:25

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You could look at using a JS Minifier, like:

answered Mar 10 '10 at 16:25

Josh

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score 0 · Answer 3 · answered Mar 10 '10 at 16:24

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In bash:

for file in `ls *js` ; do cat "$file" >> outputscript.js; echo >> "$file"; done;

answered Mar 10 '10 at 16:24

David Souther

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`echo >> outputscript.js` possibly, don't see the point of adding a newline to the old files – cobbal Mar 10 '10 at 16:28

score 0 · Answer 4 · edited May 23 '17 at 11:55

You might find some helpful information here. Several answers advocate creating multiple javascript files during development, just so developers don't go crazy scrolling through thousands of lines of code. Those files are then merged during deployment -- several approaches are suggested. Several respondents also advocate using minification, which can reduce the size of the resulting mega-file.

score 0 · Answer 5 · answered Mar 10 '10 at 16:37

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In addition to the straightforward answers like using cat or a minifier, you can also use Sprockets, which is a JavaScript build system written in Ruby. Prototype JS uses Sprockets (in fact it Sprockets was written for Prototype).

answered Mar 10 '10 at 16:37

Andrew Noyes

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Automatically concat several JavaScript files in one?

5 Answers5