diff options
| author | ruki <waruqi@gmail.com> | 2018-11-08 00:38:48 +0800 |
|---|---|---|
| committer | ruki <waruqi@gmail.com> | 2018-11-07 21:53:09 +0800 |
| commit | 26105034da4fcce7ac883c899d781f016559310d (patch) | |
| tree | c459a5dc4e3aa0972d9919033ece511ce76dd129 /node_modules/lodash/size.js | |
| parent | 2c77f00f1a7ecb6c8192f9c16d3b2001b254a107 (diff) | |
| download | xmake-docs-26105034da4fcce7ac883c899d781f016559310d.tar.gz xmake-docs-26105034da4fcce7ac883c899d781f016559310d.zip | |
switch to vuepress
Diffstat (limited to 'node_modules/lodash/size.js')
| -rw-r--r-- | node_modules/lodash/size.js | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/node_modules/lodash/size.js b/node_modules/lodash/size.js new file mode 100644 index 00000000..3561fc10 --- /dev/null +++ b/node_modules/lodash/size.js @@ -0,0 +1,46 @@ +var baseKeys = require('./_baseKeys'), + getTag = require('./_getTag'), + isArrayLike = require('./isArrayLike'), + isString = require('./isString'), + stringSize = require('./_stringSize'); + +/** `Object#toString` result references. */ +var mapTag = '[object Map]', + setTag = '[object Set]'; + +/** + * Gets the size of `collection` by returning its length for array-like + * values or the number of own enumerable string keyed properties for objects. + * + * @static + * @memberOf _ + * @since 0.1.0 + * @category Collection + * @param {Array|Object|string} collection The collection to inspect. + * @returns {number} Returns the collection size. + * @example + * + * _.size([1, 2, 3]); + * // => 3 + * + * _.size({ 'a': 1, 'b': 2 }); + * // => 2 + * + * _.size('pebbles'); + * // => 7 + */ +function size(collection) { + if (collection == null) { + return 0; + } + if (isArrayLike(collection)) { + return isString(collection) ? stringSize(collection) : collection.length; + } + var tag = getTag(collection); + if (tag == mapTag || tag == setTag) { + return collection.size; + } + return baseKeys(collection).length; +} + +module.exports = size; |
