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29 lines
906 B
JavaScript
29 lines
906 B
JavaScript
var isArrayLike = require('./isArrayLike'),
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isIndex = require('./isIndex'),
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isObject = require('../lang/isObject');
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/**
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* Checks if the provided arguments are from an iteratee call.
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*
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* @private
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* @param {*} value The potential iteratee value argument.
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* @param {*} index The potential iteratee index or key argument.
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* @param {*} object The potential iteratee object argument.
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* @returns {boolean} Returns `true` if the arguments are from an iteratee call, else `false`.
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*/
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function isIterateeCall(value, index, object) {
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if (!isObject(object)) {
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return false;
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}
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var type = typeof index;
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if (type == 'number'
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? (isArrayLike(object) && isIndex(index, object.length))
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: (type == 'string' && index in object)) {
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var other = object[index];
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return value === value ? (value === other) : (other !== other);
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}
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return false;
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}
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module.exports = isIterateeCall;
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