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expand-range
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Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See the benchmarks. Used by micromatch.
Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. See the benchmarks. Used by micromatch.
Install with npm:
$ npm install expand-range --save
Wraps [fill-range] to do range expansion using ..
separated strings. See [fill-range] for the full list of options and features.
var expand = require('expand-range');
Params
expand(start, stop, increment);
start
: the number or letter to start withend
: the number or letter to end withincrement
: optionally pass the increment to use. works for letters or numbersExamples
expand('a..e')
//=> ['a', 'b', 'c', 'd', 'e']
expand('a..e..2')
//=> ['a', 'c', 'e']
expand('A..E..2')
//=> ['A', 'C', 'E']
expand('1..3')
//=> ['1', '2', '3']
expand('0..-5')
//=> [ '0', '-1', '-2', '-3', '-4', '-5' ]
expand('-9..9..3')
//=> [ '-9', '-6', '-3', '0', '3', '6', '9' ])
expand('-1..-10..-2')
//=> [ '-1', '-3', '-5', '-7', '-9' ]
expand('1..10..2')
//=> [ '1', '3', '5', '7', '9' ]
Optionally pass a custom function as the second argument:
expand('a..e', function (val, isNumber, pad, i) {
if (!isNumber) {
return String.fromCharCode(val) + i;
}
return val;
});
//=> ['a0', 'b1', 'c2', 'd3', 'e4']
# benchmark/fixtures/alpha-lower.js (29 bytes)
brace-expansion x 145,653 ops/sec ±0.89% (87 runs sampled)
expand-range x 453,213 ops/sec ±1.66% (85 runs sampled)
minimatch x 152,193 ops/sec ±1.17% (86 runs sampled)
# benchmark/fixtures/alpha-upper.js (29 bytes)
brace-expansion x 149,975 ops/sec ±1.10% (88 runs sampled)
expand-range x 459,390 ops/sec ±1.27% (84 runs sampled)
minimatch x 155,253 ops/sec ±1.25% (88 runs sampled)
# benchmark/fixtures/padded.js (33 bytes)
brace-expansion x 14,694 ops/sec ±1.37% (85 runs sampled)
expand-range x 169,393 ops/sec ±1.76% (80 runs sampled)
minimatch x 15,052 ops/sec ±1.15% (88 runs sampled)
# benchmark/fixtures/range.js (29 bytes)
brace-expansion x 142,968 ops/sec ±1.35% (86 runs sampled)
expand-range x 465,579 ops/sec ±1.43% (86 runs sampled)
minimatch x 126,872 ops/sec ±1.18% (90 runs sampled)
You might also be interested in these projects:
Pull requests and stars are always welcome. For bugs and feature requests, please create an issue.
Generate readme and API documentation with verb:
$ npm install verb && npm run docs
Or, if verb is installed globally:
$ verb
Install dev dependencies:
$ npm install -d && npm test
Jon Schlinkert
Copyright © 2016, Jon Schlinkert. Released under the MIT license.
This file was generated by verb, v0.9.0, on May 05, 2016.
FAQs
Fast, bash-like range expansion. Expand a range of numbers or letters, uppercase or lowercase. Used by micromatch.
The npm package expand-range receives a total of 1,672,268 weekly downloads. As such, expand-range popularity was classified as popular.
We found that expand-range demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 2 open source maintainers collaborating on the project.
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