你可以使用without或pull from Lodash:

const _ = require('lodash');
_.without([1, 2, 3, 2], 2); // -> [1, 3]

方法1

var ary = ['three', 'seven', 'eleven'];
var index = ary.indexOf('seven'); // get index if value found otherwise -1

if (index > -1) { //if found
  ary.splice(index, 1);
}

方法2

一条衬垫

var ary = ['three', 'seven', 'eleven'];
filteredArr = ary.filter(function(v) { return v !== 'seven' })


// Or using ECMA6:
filteredArr = ary.filter(v => v !== 'seven')

你可以使用without或pull from Lodash:

const _ = require('lodash');
_.without([1, 2, 3, 2], 2); // -> [1, 3]

var index = array.indexOf('item');

if(index!=-1){

   array.splice(index, 1);
}

这样看看:

delete this.arrayName[this.arrayName.indexOf(value)];

参考:https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/delete

真的，我不明白为什么不能用

arr = arr.filter(value => value !== 'seven');

或者你可能想使用普通的JS

arr = arr.filter(function(value) { return value !== 'seven' });