Add two new items to the array: constfruits = ["Banana","Orange","Apple","Mango"]; fruits.push("Kiwi","Lemon"); Try it Yourself » Description Thepush()method adds new itemsto the endof an array. Thepush()method changes the length of the array. ...
push() 向数组的末尾添加一个或更多元素,并返回新的长度。 pop() 删除并返回数组的最后一个元素。 示例: var colors = new Array(); var count = colors.push("red", "green"); console.log(count); // 2 count = colors.push("black"); console.log(count); //3 var item = colors.pop(); ...
The push() method adds one or more elements at the end of an array and returns the new length of the array. Version Implemented in JavaScript 1.2 Syntax push(element1, element2,...elementN) Parameters element1, element2,...elementN The elements to add at the end of the array. Example...
Array push is used to add elements to the end of an Array. In this lesson we'll see how thepushmethod accepts multiple arguments, can be used to merge two arrays,. Push can accept multi args: constpets = ["dog","hamster"]; pets.push("cat"); console.log(pets);//["dog", "hams...
JavaScript Array push() Thepush()method adds a new element to an array (at the end): Example constfruits = ["Banana","Orange","Apple","Mango"]; fruits.push("Kiwi"); Try it Yourself » Thepush()method returns the new array length: ...
JavaScript 数组迭代方法JavaScript Array(数组) 对象JavaScript 数组方法JavaScript具有许多有用的内置方法来处理数组。 修改原始数组的方法称为mutator(更改器)方法。 返回新值或表示形式的方法称为accessor (访问器)方法。 将数组转换为字符串 toString()数组方法将数组转换为(逗号分隔)数组值的字符串。
The push() method returns the new array length: Example varfruits = ["Banana","Orange","Apple","Mango"]; varx = fruits.push("Kiwi");// the value of x is 5 Try it Yourself » Shifting Elements Shifting is equivalent to popping, working on the first element instead of the last. ...
JavaScript Array.unshift() Method It’s the same as the push function. We can add new items to the array. But the difference is that added items will not add at the end, instead they will get added at the start of the array.
一、常用的数组操作 1.数据添加push() 2.数组移除最后一个数据项pop() 3.数组顺序倒置,颠倒reverse() 4.数组排序sort(),数字排在字线前 5.数组截取splice(数组开始位置,截取数据项个数),原数组则去掉截取的这部分数组 <!DOCTYPE html> ...
1.为了方便链式调用,我们可以给Array原型添加自定义的方法来扩充数组功能 Function.prototype.method=function(name,func){ this.prototype[name]=func; return this; }; 2.利用可读写的length可以完成数组添加,删除操作 比如push() 向数组的末尾添加元素