features
v0.1.0
Published
per-file switchable code pre-transformations
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Switchable, modular, stackable features for your code. Turn on any transformations you'd like to use.
Usage example:
[jann@Jann-PC tmp]$ cat test.xjs
// :X-FEATURE: destructure
var a, b, c;
var val = [{x: 5, y: 6}, 7];
[{x: a, y: b}, c] = val;
console.log('how it should be: a=5='+a+', b=6='+b+', c=7='+c);
[jann@Jann-PC tmp]$ node
> require('features')
{}
> require('./test')
how it should be: a=5=5, b=6=6, c=7=7
{}
So, basically, for people who want to use such features:
- install
feature-<name>
modules for the features you want - use
.xjs
as file extension - in your main script, do this on top:
require('features')
- in your scripts, put lines like this one ON TOP (no lines, even no empty ones, may be on top of them):
// :X-FEATURE: destructure
Note that your main script can't use such features - you might want to use a shim script.
Also note that although this module should just work, the destructure
feature doesn't do some important things as of 15.01.2012
(most importantly, caching results).
For people who want to make features:
- make a new npm package named
feature-<name>
- in its main file, add a function
transformCodeString(code)
to the exports
See https://github.com/thejh/node-feature-destructure/ for an example.