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Rich Trott
d7aa8fa088
Update ESLint to 2.1.0. ESLint has a number of potentially-useful new features but this change attempts to be minimal in its changes. However, some things could not be avoided reasonably. ESLint 2.1.0 found a few lint issues that ESLing 1.x missed with template strings that did not take advantage of any features of template strings, and `let` declarations where `const` sufficed. Additionally, ESLint 2.1.0 removes some granularity around enabling ES6 features. Some features (e.g., spread operator) that had been turned off in our configuration for ESLint 1.x are now permitted. PR-URL: https://github.com/nodejs/node/pull/5214 Reviewed-By: Michaël Zasso <mic.besace@gmail.com> Reviewed-By: jbergstroem - Johan Bergström <bugs@bergstroem.nu> Reviewed-By: James M Snell <jasnell@gmail.com> Reviewed-By: Roman Reiss <me@silverwind.io> Reviewed-By: Myles Borins <myles.borins@gmail.com>
73 lines
2.3 KiB
JavaScript
73 lines
2.3 KiB
JavaScript
var arraySome = require('./_arraySome');
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/** Used to compose bitmasks for comparison styles. */
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var UNORDERED_COMPARE_FLAG = 1,
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PARTIAL_COMPARE_FLAG = 2;
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/**
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* A specialized version of `baseIsEqualDeep` for arrays with support for
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* partial deep comparisons.
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*
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* @private
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* @param {Array} array The array to compare.
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* @param {Array} other The other array to compare.
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* @param {Function} equalFunc The function to determine equivalents of values.
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* @param {Function} [customizer] The function to customize comparisons.
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* @param {number} [bitmask] The bitmask of comparison flags. See `baseIsEqual` for more details.
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* @param {Object} [stack] Tracks traversed `array` and `other` objects.
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* @returns {boolean} Returns `true` if the arrays are equivalent, else `false`.
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*/
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function equalArrays(array, other, equalFunc, customizer, bitmask, stack) {
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var index = -1,
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isPartial = bitmask & PARTIAL_COMPARE_FLAG,
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isUnordered = bitmask & UNORDERED_COMPARE_FLAG,
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arrLength = array.length,
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othLength = other.length;
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if (arrLength != othLength && !(isPartial && othLength > arrLength)) {
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return false;
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}
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// Assume cyclic values are equal.
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var stacked = stack.get(array);
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if (stacked) {
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return stacked == other;
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}
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var result = true;
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stack.set(array, other);
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// Ignore non-index properties.
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while (++index < arrLength) {
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var arrValue = array[index],
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othValue = other[index];
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if (customizer) {
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var compared = isPartial
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? customizer(othValue, arrValue, index, other, array, stack)
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: customizer(arrValue, othValue, index, array, other, stack);
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}
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if (compared !== undefined) {
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if (compared) {
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continue;
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}
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result = false;
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break;
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}
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// Recursively compare arrays (susceptible to call stack limits).
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if (isUnordered) {
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if (!arraySome(other, function(othValue) {
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return arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack);
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})) {
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result = false;
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break;
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}
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} else if (!(arrValue === othValue || equalFunc(arrValue, othValue, customizer, bitmask, stack))) {
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result = false;
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break;
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}
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}
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stack['delete'](array);
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return result;
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}
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module.exports = equalArrays;
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