Iterates over elements of `collection` and invokes `iteratee` for each element. The iteratee is invoked with three arguments: (value, index|key, collection). Iteratee functions may exit iteration early by explicitly returning `false`. **Note:** As with other "Collections" methods, objects with a "length" property are iterated like arrays. To avoid this behavior use `forIn` or `forOwn` for object iteration.
forEach([1, 2], value => console.log(value))
// => Logs `1` then `2`.
forEach({ 'a': 1, 'b': 2 }, (value, key) => console.log(key))
// => Logs 'a' then 'b' (iteration order is not guaranteed).
Name | Type | Attribute | Description |
---|---|---|---|
collection | The collection to iterate over. | ||
iteratee | The function invoked per iteration. |
{ "comment": "/**\r\n * Iterates over elements of `collection` and invokes `iteratee` for each element.\r\n * The iteratee is invoked with three arguments: (value, index|key, collection).\r\n * Iteratee functions may exit iteration early by explicitly returning `false`.\r\n *\r\n * **Note:** As with other \"Collections\" methods, objects with a \"length\"\r\n * property are iterated like arrays. To avoid this behavior use `forIn`\r\n * or `forOwn` for object iteration.\r\n *\r\n * @since 0.1.0\r\n * @alias each\r\n * @category Collection\r\n * @param {Array|Object} collection The collection to iterate over.\r\n * @param {Function} iteratee The function invoked per iteration.\r\n * @returns {Array|Object} Returns `collection`.\r\n * @see forEachRight, forIn, forInRight, forOwn, forOwnRight\r\n * @example\r\n *\r\n * forEach([1, 2], value => console.log(value))\r\n * // => Logs `1` then `2`.\r\n *\r\n * forEach({ 'a': 1, 'b': 2 }, (value, key) => console.log(key))\r\n * // => Logs 'a' then 'b' (iteration order is not guaranteed).\r\n */", "meta": { "range": [ 1088, 1233 ], "filename": "forEach.js", "lineno": 28, "path": "C:\\Users\\beaujeup\\projects\\jsdoc-template\\examples\\lodash\\lodash-repo", "code": { "id": "astnode100002894", "name": "forEach", "type": "FunctionDeclaration", "paramnames": [ "collection", "iteratee" ] }, "vars": { "func": "each~func" } }, "description": "Iterates over elements of `collection` and invokes `iteratee` for each element.\rThe iteratee is invoked with three arguments: (value, index|key, collection).\rIteratee functions may exit iteration early by explicitly returning `false`.\r\r**Note:** As with other \"Collections\" methods, objects with a \"length\"\rproperty are iterated like arrays. To avoid this behavior use `forIn`\ror `forOwn` for object iteration.", "since": "0.1.0", "alias": "each", "tags": [ { "originalTitle": "category", "title": "category", "text": "Collection", "value": "Collection" } ], "params": [ { "type": { "names": [ "Array", "Object" ] }, "description": "The collection to iterate over.", "name": "collection" }, { "type": { "names": [ "function" ] }, "description": "The function invoked per iteration.", "name": "iteratee" } ], "returns": [ { "type": { "names": [ "Array", "Object" ] }, "description": "Returns `collection`." } ], "see": [ "forEachRight, forIn, forInRight, forOwn, forOwnRight" ], "examples": [ "forEach([1, 2], value => console.log(value))\r// => Logs `1` then `2`.\r\rforEach({ 'a': 1, 'b': 2 }, (value, key) => console.log(key))\r// => Logs 'a' then 'b' (iteration order is not guaranteed)." ], "name": "each", "longname": "each", "kind": "function", "scope": "global", "___id": "T000002R000309", "___s": true, "filepath": "forEach.js" }