* Converts `set` to an array of its values. *将set转换成values数组。 * @private * @param {Object} set The set to convert. * @returns {Array} Returns the values. */ function setToArray(set) { var index = -1, result = Array(set.size); // 获取set的长度 set.forEach(function(v...
typedArrayTags[argsTag]= typedArrayTags[arrayTag] =typedArrayTags[arrayBufferTag]= typedArrayTags[boolTag] =typedArrayTags[dataViewTag]= typedArrayTags[dateTag] =typedArrayTags[errorTag]= typedArrayTags[funcTag] =typedArrayTags[mapTag]= typedArrayTags[numberTag] =typedArrayTags[objectTag]= typedArrayTags...
value (*)− The value to convert. Output (Object)− Returns the converted plain object. Example var_=require('lodash');functionFoo(){this.b=2;}Foo.prototype.c=3;console.log(_.assign({'a':1},newFoo));console.log(_.assign({'a':1},_.toPlainObject(newFoo))); ...
JavaScript 的对象(Object),本质上是键值对的集合(Hash 结构),但是传统上只能用字符串当作键。...如果我们想把某个东西转换成一个对象,我们需要传递具有这两个要求的东西:键和值。...满足这些要求的参数有两种类型:具有嵌套键值对的数组 Map 对象将数组转为对象 1.Object.fromEntries方法 const newArray =...
* object === other; * // => false */ function isEqual(value, other) { return baseIsEqual(value, other); } isEqual方法提供了一个很深的比较来决定两个值是否相等。该方法支持array,array buffers,booleans,data objects,error objects,maps,numbers,等等等等 ...
object:要转换的Json对象。 示例代码: 代码语言:txt 复制 const _ = require('lodash'); const json = { name: 'John', age: 30, city: 'New York' }; const array = _.values(json); console.log(array); 输出结果: 代码语言:txt 复制 ...
Object.entriesconverts an object into an array of key, value pairs. We couple that with the native Array filter method, to create a generatefilter()method that works on objects. Once we've filtered our object we useObject.fromEntriesto convert the array back into an object. This works grea...
Symbol ! Number('xx') // NaN Number(new Object()) // NaN Number(Symbol()) // --> Uncaught TypeError: Cannot convert a Symbol value to a number 另外,Symbol 可以显示的转化为 String 和 Boolean, 但是,不能进行任何隐式转换,也就是不能对 Sybmol 进行运算,比如: ...
const array = [{ attr_one: 'foo' }, { attr_one: 'bar' }] humps(array) // [{ attrOne: 'foo' }, { attrOne: 'bar' }] Custom key converter What if you want to convert it back?!? See test/createHumps.spec.js for an example. Open an issue if you want a proper export. ...
* @returns {Array} Returns the new array of filtered values. * @example * * differenceBy([2.1, 1.2], [2.3, 3.4], Math.floor) * // => [1.2] */ function differenceBy(array, ...values) { // 这里的 iteratee 取了最后一个值 let iteratee = last(values) if (isArrayLikeObject(itera...