ARRAY ||--o{ FILTER : "filters" ITEM_TO_REMOVE ||--|| FILTER : "removes" 状态图 以下是状态图,表示整个操作流程的状态变化: stateDiagram [*] --> CreatingArray CreatingArray --> SpecifyingElement SpecifyingElement --> Filtering Filtering --> OutputtingResult OutputtingResult --> [*] 结论 ...
numbers);// 确定要删除的元素letelementToRemove:number=3;console.log("要删除的元素:",elementToRemove);// 使用 filter 方法删除元素numbers=numbers.filter(num=>num!==elementToRemove);console.log("使用 filter 删除后的数组:",numbers);// 找到元素的索引constindex=numbers.indexOf(elementToRemove...
functionLogOutput(tarage:Function,key:string,descriptor:any){letoriginalMethod=descriptor.value;letnewMethod=function(...args:any[]):any{letresult:any=originalMethod.apply(this,args);if(!this.loggedOutput){this.loggedOutput=newArray<any>();}this.loggedOutput.push({method:key,parameters:args,outpu...
constbutton=document.querySelector("button");button?.addEventListener("click",handleClick);functionhandleClick(this:HTMLElement){console.log("Clicked!");this.removeEventListener("click",handleClick);} 除此之外,TypeScript 2.0 还增加了一个新的编译选项:--noImplicitThis,表示当 this 表达式值为 any 类...
Object.groupBytakes an iterable, and a function that decides which "group" each element should be placed in. The function needs to make a "key" for each distinct group, andObject.groupByuses that key to make an object where every key maps to an array with the original element in it. ...
Specifies an array of types toincludein the mock generation. When provided, only the types listed in this array will have mock data generated. Example: plugins: -typescript-mock-data:includedTypes: -User-Avatar excludedTypes (string[], defaultValue:undefined) ...
strs: TemplateStringsArray, ...fns: ((props: OtherProps & StyleProps) => string)[]): React.Component<OtherProps>; Similar to the above example, TypeScript would have no way to infer the type ofOtherPropsif the functions passed tofnswere not annotated: ...
useEventListenerFunction to add and remove event listeners using Vue lifecycle hooks(target: HTMLElement | Window | Document, event: string, callback: Function) => void useMutationObserverFunction to observe changes in DOM elements usingMutationObserver(target: Ref | Ref[] | HTMLElement | HTMLEleme...
addFront(element):队首入队(双端队列特有)。 removeBack():队尾出队(双端队列特有)。 peekBack():查看队尾元素(双端队列特有)。 在实现时,其实与队列的实现方式类似,只不过在队首入队时需要lowestCount--,队尾出队时需要count--。 export default class Deque<T> { ...
// ES5:var name = 'Semlinker'; 2.4 Array 类型 let list: number[] = [1, 2, 3]; // ES5:var list = [1,2,3]; let list: Array<number> = [1, 2, 3]; // Array<number>泛型语法 // ES5:var list = [1,2,3]; 2.5 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...