//相等性比较函数function defaultEquals(a, b){ return Object.is(a, b)}//表示链表中的一个元素class Node { constructor(element) { this.element = element; //元素的值 this.next = undefined; //指向下一个元素的指针 }}//链表类class LinkedList { constructor (equalsFn = defaultEquals) { this...
private class Itr implements Iterator<E> { int cursor; // index of next element to return int lastRet = -1; // index of last element returned; -1 if no such int expectedModCount = modCount; // prevent creating a synthetic constructor Itr() {} public boolean hasNext() { return cursor...
function isBigEnough(element, index, array) { return (element >= 10); } var passed = [12, 5, 8, 130, 44].filter(isBigEnough); // 12,130,44 indexOf() 查找,返回下标 var index = [12, 5, 8, 130, 44].indexOf(130); console.log("index is : " + index ); // 3 lastI...
let array=Array.from(tuple); array.push("New Element"); console.log(array
2.5 Array 类型 2.6 Enum 类型 使用枚举我们可以定义一些带名字的常量。 使用枚举可以清晰地表达意图或创建一组有区别的用例。 TypeScript 支持数字的和基于字符串的枚举。 1.数字枚举 默认情况下,NORTH 的初始值为 0,其余的成员会从 1 开始自动增长。换句话说,Direction.SOUTH 的值为 1,Direction.EAST 的值为...
[],sort(compareFn?:(a:T,b:T)=>number):this,splice(start:number,deleteCount?:number):T[],// 注意此处的重载写法splice(start:number,deleteCount:number,...items:T[]):T[],unshift(...items:T[]):number,indexOf(searchElement:T,fromIndex?:number):number,lastIndexOf(searchElement:T,...
parseList函数, 我们发现返回的result最终是由parseListElement函数决定的。 function parseList<T extends Node>(kind: ParsingContext, parseElement: () => T): NodeArray<T> { const saveParsingContext = parsingContext; parsingContext |= 1 << kind; ...
// Gooddeclare function fn(x: HTMLDivElement): stringdeclare function fn(x: HTMLElement): numberdeclare function fn(x: any): anylet myElem: HTMLDivElementlet x = fn(myElem) // x: string, :)优先使用使用可选参数，而不是重载：// Badinterface Example { diff(one: string): number ...
Uncapitalize<StringType>:将字符串首字母转为小写格式 type UppercaseGreeting = "HELLO WORLD"; type UncomfortableGreeting = Uncapitalize<UppercaseGreeting>; // 相当于 type UncomfortableGreeting = "hELLO WORLD" typescript 本文系转载,阅读原文 https://zhuanlan.zhihu.com/p/640499290 ...
import{ serialize, jsonify }from"./serializer";classPerson{firstName:string;lastName:string;@serializeage:number@serializegetfullName() {return`${this.firstName}${this.lastName}`; }toJSON() {returnjsonify(this) }constructor(firstName:string,lastName:string,age:number) {// ......