Package Exports
- parse-numeric-range
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Readme
node-parse-numeric-range
Parses expressions like 1-10,20-30. Returns an energetic array.
Supported Expressions
Comprehensive supported expression examples:
| Expression | result |
|---|---|
| [] | |
| 1 | [1] |
| 1,2 | [1,2] |
| -10 | [-10] |
| -3,-3 | [-3, -3] |
| -1-2,-2 | [-1,0,1,2,-2] |
| -1..2,-2 | [-1,0,1,2,-2] |
| -1...3,-2 | [-1,0,1,2,-2] |
What's this useful for? Well, letting users input these sorts of things and then making them programmatically useful.
Usage
First, npm install parse-numeric-range.
var rangeParser = require('parse-numeric-range');
var nums = rangeParser.parse('4,6,8-10,12,14..16,18,20...23');
console.log("The first " + nums.length + " composite numbers are: " + nums.join(', '));