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Diffstat (limited to 'deps/npm/node_modules/lodash/collection/every.js')
-rw-r--r-- | deps/npm/node_modules/lodash/collection/every.js | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/deps/npm/node_modules/lodash/collection/every.js b/deps/npm/node_modules/lodash/collection/every.js new file mode 100644 index 0000000000..5a2d0f5dd4 --- /dev/null +++ b/deps/npm/node_modules/lodash/collection/every.js @@ -0,0 +1,66 @@ +var arrayEvery = require('../internal/arrayEvery'), + baseCallback = require('../internal/baseCallback'), + baseEvery = require('../internal/baseEvery'), + isArray = require('../lang/isArray'), + isIterateeCall = require('../internal/isIterateeCall'); + +/** + * Checks if `predicate` returns truthy for **all** elements of `collection`. + * The predicate is bound to `thisArg` and invoked with three arguments: + * (value, index|key, collection). + * + * If a property name is provided for `predicate` the created `_.property` + * style callback returns the property value of the given element. + * + * If a value is also provided for `thisArg` the created `_.matchesProperty` + * style callback returns `true` for elements that have a matching property + * value, else `false`. + * + * If an object is provided for `predicate` the created `_.matches` style + * callback returns `true` for elements that have the properties of the given + * object, else `false`. + * + * @static + * @memberOf _ + * @alias all + * @category Collection + * @param {Array|Object|string} collection The collection to iterate over. + * @param {Function|Object|string} [predicate=_.identity] The function invoked + * per iteration. + * @param {*} [thisArg] The `this` binding of `predicate`. + * @returns {boolean} Returns `true` if all elements pass the predicate check, + * else `false`. + * @example + * + * _.every([true, 1, null, 'yes'], Boolean); + * // => false + * + * var users = [ + * { 'user': 'barney', 'active': false }, + * { 'user': 'fred', 'active': false } + * ]; + * + * // using the `_.matches` callback shorthand + * _.every(users, { 'user': 'barney', 'active': false }); + * // => false + * + * // using the `_.matchesProperty` callback shorthand + * _.every(users, 'active', false); + * // => true + * + * // using the `_.property` callback shorthand + * _.every(users, 'active'); + * // => false + */ +function every(collection, predicate, thisArg) { + var func = isArray(collection) ? arrayEvery : baseEvery; + if (thisArg && isIterateeCall(collection, predicate, thisArg)) { + predicate = undefined; + } + if (typeof predicate != 'function' || thisArg !== undefined) { + predicate = baseCallback(predicate, thisArg, 3); + } + return func(collection, predicate); +} + +module.exports = every; |