mirror of
https://github.com/whoisclebs/lodash.git
synced 2026-01-31 07:17:50 +00:00
Rename binaryIndex and binaryIndexBy to baseSortedIndex and baseSortedIndexBy.
This commit is contained in:
169
lodash.js
169
lodash.js
@@ -3372,6 +3372,85 @@
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});
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}
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/**
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* The base implementation of `_.sortedIndex` and `_.sortedLastIndex` which
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* performs a binary search of `array` to determine the index at which `value`
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* should be inserted into `array` in order to maintain its sort order.
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*
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* @private
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* @param {Array} array The sorted array to inspect.
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* @param {*} value The value to evaluate.
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* @param {boolean} [retHighest] Specify returning the highest qualified index.
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* @returns {number} Returns the index at which `value` should be inserted
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* into `array`.
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*/
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function baseSortedIndex(array, value, retHighest) {
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var low = 0,
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high = array ? array.length : low;
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if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
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while (low < high) {
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var mid = (low + high) >>> 1,
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computed = array[mid];
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if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
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low = mid + 1;
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} else {
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high = mid;
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}
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}
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return high;
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}
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return baseSortedIndexBy(array, value, identity, retHighest);
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}
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/**
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* The base implementation of `_.sortedIndexBy` and `_.sortedLastIndexBy`
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* which invokes `iteratee` for `value` and each element of `array` to compute
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* their sort ranking. The iteratee is invoked with one argument; (value).
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*
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* @private
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* @param {Array} array The sorted array to inspect.
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* @param {*} value The value to evaluate.
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* @param {Function} iteratee The iteratee invoked per element.
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* @param {boolean} [retHighest] Specify returning the highest qualified index.
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* @returns {number} Returns the index at which `value` should be inserted into `array`.
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*/
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function baseSortedIndexBy(array, value, iteratee, retHighest) {
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value = iteratee(value);
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var low = 0,
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high = array ? array.length : 0,
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valIsNaN = value !== value,
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valIsNull = value === null,
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valIsUndef = value === undefined;
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while (low < high) {
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var mid = nativeFloor((low + high) / 2),
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computed = iteratee(array[mid]),
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isDef = computed !== undefined,
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isReflexive = computed === computed;
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if (valIsNaN) {
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var setLow = isReflexive || retHighest;
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} else if (valIsNull) {
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setLow = isReflexive && isDef && (retHighest || computed != null);
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} else if (valIsUndef) {
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setLow = isReflexive && (retHighest || isDef);
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} else if (computed == null) {
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setLow = false;
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} else {
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setLow = retHighest ? (computed <= value) : (computed < value);
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}
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if (setLow) {
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low = mid + 1;
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} else {
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high = mid;
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}
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}
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return nativeMin(high, MAX_ARRAY_INDEX);
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}
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/**
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* The base implementation of `_.sortedUniq`.
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*
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@@ -3568,84 +3647,6 @@
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return (result && result.length) ? baseUniq(result, iteratee, comparator) : [];
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}
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/**
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* Performs a binary search of `array` to determine the index at which `value`
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* should be inserted into `array` in order to maintain its sort order.
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*
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* @private
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* @param {Array} array The sorted array to inspect.
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* @param {*} value The value to evaluate.
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* @param {boolean} [retHighest] Specify returning the highest qualified index.
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* @returns {number} Returns the index at which `value` should be inserted
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* into `array`.
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*/
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function binaryIndex(array, value, retHighest) {
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var low = 0,
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high = array ? array.length : low;
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if (typeof value == 'number' && value === value && high <= HALF_MAX_ARRAY_LENGTH) {
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while (low < high) {
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var mid = (low + high) >>> 1,
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computed = array[mid];
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if ((retHighest ? (computed <= value) : (computed < value)) && computed !== null) {
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low = mid + 1;
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} else {
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high = mid;
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}
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}
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return high;
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}
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return binaryIndexBy(array, value, identity, retHighest);
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}
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/**
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* This function is like `binaryIndex` except that it invokes `iteratee` for
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* `value` and each element of `array` to compute their sort ranking. The
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* iteratee is invoked with one argument; (value).
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*
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* @private
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* @param {Array} array The sorted array to inspect.
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* @param {*} value The value to evaluate.
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* @param {Function} iteratee The iteratee invoked per element.
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* @param {boolean} [retHighest] Specify returning the highest qualified index.
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* @returns {number} Returns the index at which `value` should be inserted into `array`.
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*/
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function binaryIndexBy(array, value, iteratee, retHighest) {
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value = iteratee(value);
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var low = 0,
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high = array ? array.length : 0,
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valIsNaN = value !== value,
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valIsNull = value === null,
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valIsUndef = value === undefined;
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while (low < high) {
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var mid = nativeFloor((low + high) / 2),
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computed = iteratee(array[mid]),
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isDef = computed !== undefined,
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isReflexive = computed === computed;
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if (valIsNaN) {
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var setLow = isReflexive || retHighest;
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} else if (valIsNull) {
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setLow = isReflexive && isDef && (retHighest || computed != null);
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} else if (valIsUndef) {
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setLow = isReflexive && (retHighest || isDef);
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} else if (computed == null) {
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setLow = false;
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} else {
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setLow = retHighest ? (computed <= value) : (computed < value);
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}
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if (setLow) {
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low = mid + 1;
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} else {
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high = mid;
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}
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}
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return nativeMin(high, MAX_ARRAY_INDEX);
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}
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/**
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* Creates a clone of `buffer`.
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*
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@@ -6124,7 +6125,7 @@
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* // => 0
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*/
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function sortedIndex(array, value) {
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return binaryIndex(array, value);
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return baseSortedIndex(array, value);
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}
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/**
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@@ -6151,7 +6152,7 @@
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* // => 0
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*/
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function sortedIndexBy(array, value, iteratee) {
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return binaryIndexBy(array, value, getIteratee(iteratee));
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return baseSortedIndexBy(array, value, getIteratee(iteratee));
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}
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/**
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@@ -6172,7 +6173,7 @@
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function sortedIndexOf(array, value) {
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var length = array ? array.length : 0;
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if (length) {
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var index = binaryIndex(array, value);
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var index = baseSortedIndex(array, value);
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if (index < length &&
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(value === value ? (value === array[index]) : (array[index] !== array[index]))) {
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return index;
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@@ -6198,7 +6199,7 @@
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* // => 1
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*/
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function sortedLastIndex(array, value) {
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return binaryIndex(array, value, true);
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return baseSortedIndex(array, value, true);
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}
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/**
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@@ -6220,7 +6221,7 @@
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* // => 1
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*/
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function sortedLastIndexBy(array, value, iteratee) {
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return binaryIndexBy(array, value, getIteratee(iteratee), true);
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return baseSortedIndexBy(array, value, getIteratee(iteratee), true);
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}
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/**
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@@ -6241,7 +6242,7 @@
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function sortedLastIndexOf(array, value) {
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var length = array ? array.length : 0;
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if (length) {
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var index = binaryIndex(array, value, true) - 1,
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var index = baseSortedIndex(array, value, true) - 1,
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other = array[index];
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if (value === value ? (value === other) : (other !== other)) {
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