在反转其元素的顺序后返回数组。 注意:reverse()方法颠倒了元素的顺序,这意味着它改变了原始数组并且没有复制。 示例:反转数组的元素 varlanguages = ["JavaScript","Python","C++","Java","Lua"];console.log("Original Array: "+ languages);// reversing array orderreversed_arr = languages.reverse();//...
Reversed Array: [ 'Lua', 'Java', 'C++', 'Python', 'JavaScript' ] Original Array: [ 'Lua', 'Java', 'C++', 'Python', 'JavaScript' ] In the above example, we have used thereverse()method to reverse thelanguagesarray. languages.reverse()reverses the order of each element in the arr...
vara = [1,2,3,4,5];varb = a.reverse();//b = [5,4,3,2,1] splice(start,deleteCount,val1,val2,...):从start位置开始删除deleteCount项,并从该位置起插入val1,val2,... vara = [ 1,2,3,4,5];varb = a.splice( 2,2,7,8,9);//a:[1,2,7,8,9,5] b:[ 3,4]varb =...
console.log(values);//5,4,3,2,1 Result Here, the array's values are initially set to 1, 2, 3, 4, and 5. Calling reverse() on the array reverses the order to 5, 4, 3, 2, 1. The sort() method puts the items in ascending order. The sort() method calls the String() cast...
array.reverse() Parameters None Return An Array, representing the array after it has been reversed Example Reverse the order of the elements in an array: Demo var myArray = ["XML", "Json", "Database", "Mango"]; console.log( myArray );/*from w w w . jav a 2 s .co ...
Reverse the order of the elements in an array:var fruits = ["Banana", "Orange", "Apple", "Mango"]; fruits.reverse(); The result of fruits will be:Mango,Apple,Orange,BananaTry it yourself » Definition and UsageThe reverse() method reverses the order of the elements in an array....
console.log('字符串数组stringArray:'+ stringArray); Chrome输出的结果: 字符串数组stringArray:Beluga,Humpback,blue 数字字符串数组排列 创建一个数字字符串数组之后对数组进行排序,对比数字数组分别指定与不指定比较函数的结果: varnumericStringArray = ['80','9','700'];functioncompareFunction(a, b) {retu...
2. 实例方法:介绍 Array 对象的实例方法:concat、every、filter、forEach、indexOf、join、lastIndexOf、map、pop、push、reverse、shift、slice、sort、splice、toString、tounshift等。 3. 静态方法:介绍 Array 对象的静态方法:Array.isArray()。 4. 实际操作:对 Array 进行示例操作:索引、for遍历、浅度复制、深...
这里数组的初始顺序是1、2、3、4、5,调用数组的reverse()方法后,其值顺序变为5、4、3、2、1 2、sort() 用法:arrayobj.sort(sortfunction) 参数说明: (1)arrayObj 必选项,任意 Array 实例。 (2)sortFunction 可选项,是用来确定元素顺序的函数的名称。如果这个参数被省略,那么元素将按照 ASCII 字符顺序进行...
Thereverse()method reverses the order of the elements in an array. Thereverse()method overwrites the original array. See Also: The toReversed() Method Syntax array.reverse() Parameters NONE Return Value TypeDescription ArrayThe array after it has been reversed. ...