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合并數(shù)組元素的技巧有很多,這里列舉一些常見的方法:
let arr1 = [1, 2, 3];
let arr2 = [4, 5, 6];
let mergedArr = [];
for (let i = 0; i < arr1.length; i++) {
mergedArr.push(arr1[i]);
}
for (let i = 0; i < arr2.length; i++) {
mergedArr.push(arr2[i]);
}
console.log(mergedArr); // [1, 2, 3, 4, 5, 6]
let arr1 = [1, 2, 3];
let arr2 = [4, 5, 6];
let mergedArr = arr1.concat(arr2);
console.log(mergedArr); // [1, 2, 3, 4, 5, 6]
let arr1 = [1, 2, 3];
let arr2 = [4, 5, 6];
let mergedArr = [...arr1, ...arr2];
console.log(mergedArr); // [1, 2, 3, 4, 5, 6]
let arr1 = [1, 2, 3];
let arr2 = [4, 5, 6];
let mergedArr = arr1.slice(); // 創(chuàng)建arr1的副本,避免修改原數(shù)組
Array.prototype.push.apply(mergedArr, arr2);
console.log(mergedArr); // [1, 2, 3, 4, 5, 6]
let arr1 = [1, 2, 3];
let arr2 = [4, 5, 6];
let mergedArr = arr1.slice(); // 創(chuàng)建arr1的副本,避免修改原數(shù)組
mergedArr.splice(mergedArr.length, 0, ...arr2);
console.log(mergedArr); // [1, 2, 3, 4, 5, 6]
根據(jù)你的需求和編程語言,可以選擇合適的方法來合并數(shù)組元素。
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