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Diffstat (limited to 'deps/npm/node_modules/cli-table2/node_modules/lodash/array/indexOf.js')
-rw-r--r-- | deps/npm/node_modules/cli-table2/node_modules/lodash/array/indexOf.js | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/deps/npm/node_modules/cli-table2/node_modules/lodash/array/indexOf.js b/deps/npm/node_modules/cli-table2/node_modules/lodash/array/indexOf.js new file mode 100644 index 0000000000..4cfc682319 --- /dev/null +++ b/deps/npm/node_modules/cli-table2/node_modules/lodash/array/indexOf.js @@ -0,0 +1,53 @@ +var baseIndexOf = require('../internal/baseIndexOf'), + binaryIndex = require('../internal/binaryIndex'); + +/* Native method references for those with the same name as other `lodash` methods. */ +var nativeMax = Math.max; + +/** + * Gets the index at which the first occurrence of `value` is found in `array` + * using [`SameValueZero`](http://ecma-international.org/ecma-262/6.0/#sec-samevaluezero) + * for equality comparisons. If `fromIndex` is negative, it's used as the offset + * from the end of `array`. If `array` is sorted providing `true` for `fromIndex` + * performs a faster binary search. + * + * @static + * @memberOf _ + * @category Array + * @param {Array} array The array to search. + * @param {*} value The value to search for. + * @param {boolean|number} [fromIndex=0] The index to search from or `true` + * to perform a binary search on a sorted array. + * @returns {number} Returns the index of the matched value, else `-1`. + * @example + * + * _.indexOf([1, 2, 1, 2], 2); + * // => 1 + * + * // using `fromIndex` + * _.indexOf([1, 2, 1, 2], 2, 2); + * // => 3 + * + * // performing a binary search + * _.indexOf([1, 1, 2, 2], 2, true); + * // => 2 + */ +function indexOf(array, value, fromIndex) { + var length = array ? array.length : 0; + if (!length) { + return -1; + } + if (typeof fromIndex == 'number') { + fromIndex = fromIndex < 0 ? nativeMax(length + fromIndex, 0) : fromIndex; + } else if (fromIndex) { + var index = binaryIndex(array, value); + if (index < length && + (value === value ? (value === array[index]) : (array[index] !== array[index]))) { + return index; + } + return -1; + } + return baseIndexOf(array, value, fromIndex || 0); +} + +module.exports = indexOf; |