hash-to-array
Turns an arg hash into an array of arguments. Useful when running command line apps with child_process.
Like minimist in reverse.
examples
Please note that these examples are not good real-world use-cases. There are much better ways of accomplishing what is shown in these examples!
rm -rf dir:
var hashToArray = require('hash-to-array')var spawn = require('child_process').spawn var args = hashToArray({ r: true, f: true, '/lolz/moar/lol': false}) //=> [ '-r', '-f', '/lolz/moar/lol' ]spawn('rm', args)
mkdir -p dir:
var hashToArray = require('hash-to-array')var spawn = require('child_process').spawn spawn('mkdir', hashToArray({p: true})) //=> [ '-p' ]
browserify:
var hashToArray = require('hash-to-array')var spawn = require('child_process').spawn var args = hashToArray({ 'myModule.js': false, d: true, outfile: './bundle.js'}) //=> [ 'myModule.js', '-d', '--outfile', './bundle.js' ]spawn('browserify', args)
usage
var arr = hashToArray(hash)
hash
is a map of the input arguments and their corresponding values.- If it is already an array, it returns it.
- If it is not an object, it stuffs it into an array. E.g.
7
->[7]
- Returns
arr
.
// Objects are transformed into arrays // => [ '--your', 'name' ] // => [ '--hello' ] // => [ 'hello' ] // => [ '-0', 8, '1', '--length', 2 ] // Arrays are unmodified // => [ '-o', 'two.txt' ] // Other things are stuffed into arrays // => [ 'hi there' ] // => [ 17 ] // => [ '--username', 'joseph', '--password', 'lolwut', '--debug-level', 12 ]
Note that boolean values do not get pushed to the array. They signify the presence of prepended dashes. (See examples.)
install
With npm do:
npm install hash-to-array