getTime()) as any; } // handle Array types if (instance instanceof Array){ var cloneArr = [] as any[]; (instance as any[]).forEach((value) => {cloneArr.push(value)}); // for nested objects return cloneArr.map((value: any) => deepCopy<any>(value)) as any; } // ...
clonedArray[0].name = 'Mike'; console.log(sourceArray[0].name); // 输出: 'John' console.log(clonedArray[0].name); // 输出: 'Mike' 这样,你就成功地在TypeScript中克隆了对象数组。 对于TypeScript中克隆对象数组的应用场景,当你需要对一个对象数组进行操作时,但又不希望修改原始数组,克隆数组就...
functiondeepCopy<T>(instance:T):T{if(instance==null){returninstance;}// handle Datesif(instanceinstanceofDate){returnnewDate(instance.getTime())asany;}// handle Array typesif(instanceinstanceofArray){varcloneArr=[]asany[];(instanceasany[]).forEach((value)=>{cloneArr.push(value)});// ...
function deepObject(obj) { let cloneObj = {} for (let key in obj) { let objChild = Object.prototype.toString.call(obj[key]) cloneObj[key] = objChild === '[object Array]' || objChild === '[object Object]' ? deepObject(obj[key]) : obj[key] } return cloneObj } let obj2 ...
}else{thrownewError(`Array regimen.regimen_items may only contain objects with an "id" property.`); } });return{name: regimen.name,color: regimen.color, regimen_items }; }; 开发者ID:roryaronson,项目名称:farmbot-web-frontend,代码行数:22,代码来源:serializers.ts ...
Two ways to define an array type Type assertion in ts Generic functions and generic interfaces How to understand as const? What does declare global mean? How to add a global variable to the TypeScript environment? Can interface be inherited?
Changing the value of a property in thecopydoesn't change the value in the original object because the nested objects and arrays point to different locations in memory. I've also written an article onhow to create a deep copy of an array. ...
TODO: Instantiate the BuildArray objectsを特定します。 testArray1およびtestArray2の変数宣言を更新して、新しいBuildArrayオブジェクトのインスタンスを作成します。 TypeScript lettestArray1 =newBuildArray(12,'ascending');lettestArray2 =newBuildArray(8,'descending'); ...
cloneNode(true); // has the type `HTMLAnchorElement` instead of just `Node` const fragment = document.querySelector("template#foo-template").content; for (let i = 0; i < 10; i++) { const clone = fragment.cloneNode(true); // has the type `DocumentFragment` instead of just `Node`...
array.mdx | |—— no-implied-eval.mdx | |—— no-import-type-side-effects.mdx | |—— no-inferrable-types.mdx | |—— no-invalid-this.mdx | |—— no-invalid-void-type.mdx | |—— no-loop-func.mdx | |—— no-loss-of-precision.mdx | |—— no-magic-numbers.mdx | |——...