| 1 | function startsWith (prefix, str) {
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| 2 | console.assert(typeof str === 'string', 'expected string', str)
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| 3 | return str.indexOf(prefix) === 0
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| 4 | }
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| 5 |
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| 6 | function sameLength (a, b) {
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| 7 | return a.length === b.length
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| 8 | }
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| 9 |
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| 10 | function matchesExactly (prefix, str) {
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| 11 | return startsWith(prefix, str) &&
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| 12 | sameLength(prefix, str)
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| 13 | }
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| 14 |
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| 15 | function findScripts (prefix, scripts) {
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| 16 | const labels = Object.keys(scripts)
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| 17 | const matchesExactlyPrefix = matchesExactly.bind(null, prefix)
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| 18 | const exactMatches = labels.filter(matchesExactlyPrefix)
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| 19 | if (exactMatches.length === 1) {
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| 20 | return exactMatches
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| 21 | }
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| 22 |
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| 23 | const startsWithPrefix = startsWith.bind(null, prefix)
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| 24 | const matchingScripts = labels.filter(startsWithPrefix)
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| 25 | return matchingScripts
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| 26 | }
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| 27 |
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| 28 | module.exports = findScripts
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