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Add nullish guards to private methods used by lodash-webpack-plugin.

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John-David Dalton
2016-05-16 18:31:33 -07:00
parent 708505f2b1
commit 1fe8d1679e
1 changed files with 31 additions and 29 deletions
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60
lodash.js
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@@ -417,7 +417,7 @@
* A specialized version of `baseAggregator` for arrays.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} setter The function to set `accumulator` values.
* @param {Function} iteratee The iteratee to transform keys.
* @param {Object} accumulator The initial aggregated object.
@@ -425,7 +425,7 @@
*/
function arrayAggregator(array, setter, iteratee, accumulator) {
var index = -1,
length = array.length;
length = array ? array.length : 0;
while (++index < length) {
var value = array[index];
@@ -439,13 +439,13 @@
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns `array`.
*/
function arrayEach(array, iteratee) {
var index = -1,
length = array.length;
length = array ? array.length : 0;
while (++index < length) {
if (iteratee(array[index], index, array) === false) {
@@ -460,12 +460,12 @@
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns `array`.
*/
function arrayEachRight(array, iteratee) {
var length = array.length;
var length = array ? array.length : 0;
while (length--) {
if (iteratee(array[length], length, array) === false) {
@@ -480,14 +480,14 @@
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if all elements pass the predicate check,
* else `false`.
*/
function arrayEvery(array, predicate) {
var index = -1,
length = array.length;
length = array ? array.length : 0;
while (++index < length) {
if (!predicate(array[index], index, array)) {
@@ -502,13 +502,13 @@
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {Array} Returns the new filtered array.
*/
function arrayFilter(array, predicate) {
var index = -1,
length = array.length,
length = array ? array.length : 0,
resIndex = 0,
result = [];
@@ -526,26 +526,27 @@
* specifying an index to search from.
*
* @private
* @param {Array} array The array to search.
* @param {Array} [array] The array to search.
* @param {*} target The value to search for.
* @returns {boolean} Returns `true` if `target` is found, else `false`.
*/
function arrayIncludes(array, value) {
return !!array.length && baseIndexOf(array, value, 0) > -1;
var length = array ? array.length : 0;
return !!length && baseIndexOf(array, value, 0) > -1;
}
/**
* This function is like `arrayIncludes` except that it accepts a comparator.
*
* @private
* @param {Array} array The array to search.
* @param {Array} [array] The array to search.
* @param {*} target The value to search for.
* @param {Function} comparator The comparator invoked per element.
* @returns {boolean} Returns `true` if `target` is found, else `false`.
*/
function arrayIncludesWith(array, value, comparator) {
var index = -1,
length = array.length;
length = array ? array.length : 0;
while (++index < length) {
if (comparator(value, array[index])) {
@@ -560,13 +561,13 @@
* shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @returns {Array} Returns the new mapped array.
*/
function arrayMap(array, iteratee) {
var index = -1,
length = array.length,
length = array ? array.length : 0,
result = Array(length);
while (++index < length) {
@@ -599,7 +600,7 @@
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initAccum] Specify using the first element of `array` as
@@ -608,7 +609,7 @@
*/
function arrayReduce(array, iteratee, accumulator, initAccum) {
var index = -1,
length = array.length;
length = array ? array.length : 0;
if (initAccum && length) {
accumulator = array[++index];
@@ -624,7 +625,7 @@
* iteratee shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} iteratee The function invoked per iteration.
* @param {*} [accumulator] The initial value.
* @param {boolean} [initAccum] Specify using the last element of `array` as
@@ -632,7 +633,7 @@
* @returns {*} Returns the accumulated value.
*/
function arrayReduceRight(array, iteratee, accumulator, initAccum) {
var length = array.length;
var length = array ? array.length : 0;
if (initAccum && length) {
accumulator = array[--length];
}
@@ -647,14 +648,14 @@
* shorthands.
*
* @private
* @param {Array} array The array to iterate over.
* @param {Array} [array] The array to iterate over.
* @param {Function} predicate The function invoked per iteration.
* @returns {boolean} Returns `true` if any element passes the predicate check,
* else `false`.
*/
function arraySome(array, predicate) {
var index = -1,
length = array.length;
length = array ? array.length : 0;
while (++index < length) {
if (predicate(array[index], index, array)) {
@@ -1010,12 +1011,12 @@
* Gets the value at `key` of `object`.
*
* @private
* @param {Object} object The object to query.
* @param {Object} [object] The object to query.
* @param {string} key The key of the property to get.
* @returns {*} Returns the property value.
*/
function getValue(object, key) {
return object[key];
return object == null ? undefined : object[key];
}
/**
@@ -2732,7 +2733,7 @@
* The base implementation of `_.has` without support for deep paths.
*
* @private
* @param {Object} object The object to query.
* @param {Object} [object] The object to query.
* @param {Array|string} key The key to check.
* @returns {boolean} Returns `true` if `key` exists, else `false`.
*/
@@ -2740,20 +2741,21 @@
// Avoid a bug in IE 10-11 where objects with a [[Prototype]] of `null`,
// that are composed entirely of index properties, return `false` for
// `hasOwnProperty` checks of them.
return hasOwnProperty.call(object, key) ||
(typeof object == 'object' && key in object && getPrototype(object) === null);
return object != null &&
(hasOwnProperty.call(object, key) ||
(typeof object == 'object' && key in object && getPrototype(object) === null));
}
/**
* The base implementation of `_.hasIn` without support for deep paths.
*
* @private
* @param {Object} object The object to query.
* @param {Object} [object] The object to query.
* @param {Array|string} key The key to check.
* @returns {boolean} Returns `true` if `key` exists, else `false`.
*/
function baseHasIn(object, key) {
return key in Object(object);
return object != null && key in Object(object);
}
/**