15 lines
406 B
JavaScript
15 lines
406 B
JavaScript
var _cb = require('./_cb.js');
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var keys = require('./keys.js');
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// Returns the first key on an object that passes a truth test.
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function findKey(obj, predicate, context) {
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predicate = _cb(predicate, context);
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var _keys = keys(obj), key;
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for (var i = 0, length = _keys.length; i < length; i++) {
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key = _keys[i];
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if (predicate(obj[key], key, obj)) return key;
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}
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}
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module.exports = findKey;
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