Run results for: Character position - Triet

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/63.0.3239.84 Chrome/63.0.3239.84 Safari/537.36

Browser: Chromium 63

Operating system: Ubuntu

Device Platform: Other

Date tested: 2025 years ago

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>

Script Preparation code:

var source = "scissors";
var result = null;

Tests:

Vanilla
result = []; for(var i=0; i<source.length;i++) { if (source[i] === "s") result.push(i); }
Vanilla map
result = source.split('').map((c, i) => { return c === 's' ? i : null; }).filter(x => x !== null);
Lodash map
result = _.filter(_.map(source, (c, i) => { return c === 's' ? i : null; }), (x) => x !== null);
Lodash reduce
result = _.reduce(source, (result, value, key) => { value === 's' && result.push(key); return result; }, []);
Lodash chain map
result = _(source).map((c, i) => { return c === 's' ? i : null; }).filter(x => x !== null).value();