Javascript 从javascript数组中删除字符串元素
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/10805874/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
remove string element from javascript array
提问by Mina Gabriel
can some one tell me how can i remove string element from an array i have google this and all i get is removing by index number
有人可以告诉我如何从数组中删除字符串元素我有谷歌这个，我得到的只是按索引号删除
my example :
我的例子：
var myarray = ["xyz" , "abc" , "def"] ;
var removeMe = "abc" ;
myarray.remove(removeMe) ;
consle.log(myarray) ;
this is what i get from the console :
这是我从控制台得到的：
Uncaught TypeError: Object xyz,abc,def has no method 'remove'
? jsfiddle
? 提琴手
采纳答案by Hidde
From https://stackoverflow.com/a/3955096/711129:
从https://stackoverflow.com/a/3955096/711129：
Array.prototype.remove= function(){
var what, a= arguments, L= a.length, ax;
while(L && this.length){
what= a[--L];
while((ax= this.indexOf(what))!= -1){
this.splice(ax, 1);
}
}
return this;
}
var ary = ['three', 'seven', 'eleven'];
ary.remove('seven')
or, making it a global function:
或者，使它成为一个全局函数：
function removeA(arr){
var what, a= arguments, L= a.length, ax;
while(L> 1 && arr.length){
what= a[--L];
while((ax= arr.indexOf(what))!= -1){
arr.splice(ax, 1);
}
}
return arr;
}
var ary= ['three','seven','eleven'];
removeA(ary,'seven')
You have to make a function yourself. You can either loop over the array and remove the element from there, or have this function do it for you. Either way, it is not a standard JS feature.
你必须自己做一个函数。您可以循环遍历数组并从那里删除元素，或者让此函数为您完成。无论哪种方式，它都不是标准的 JS 功能。
回答by jwatts1980
Since you're using jQuery
由于您使用的是 jQuery
myarray.splice($.inArray("abc", myarray), 1);
myarray.splice($.inArray("abc", myarray), 1);
EDITIf the item isn't in the array, this 'one-liner' will likely throw an error. Something a little better
编辑如果该项目不在数组中，则此“单行”可能会引发错误。好一点的东西
var index = $.inArray("abc", myarray);
if (index>=0) myarray.splice(index, 1);
回答by Selvakumar Arumugam
Try like below,
尝试如下，
myarray.splice(myarray.indexOf(removeMe),1);
You can add this below script (from MDN) for browsers that doesn't support indexOf
您可以为不支持 indexOf 的浏览器添加以下脚本（来自 MDN）
if (!Array.prototype.indexOf) {
Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
"use strict";
if (this == null) {
throw new TypeError();
}
var t = Object(this);
var len = t.length >>> 0;
if (len === 0) {
return -1;
}
var n = 0;
if (arguments.length > 0) {
n = Number(arguments[1]);
if (n != n) { // shortcut for verifying if it's NaN
n = 0;
} else if (n != 0 && n != Infinity && n != -Infinity) {
n = (n > 0 || -1) * Math.floor(Math.abs(n));
}
}
if (n >= len) {
return -1;
}
var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
for (; k < len; k++) {
if (k in t && t[k] === searchElement) {
return k;
}
}
return -1;
}
}
