我有两个数组是这样的:找到重复的两个数组
var x = ['1','2','6'];
var y = ['4', '5','6'];
如何找到在纯JavaScript和我在两个数组复制想避免使用循环?
输出 - duplicates: 6
我有两个数组是这样的:找到重复的两个数组
var x = ['1','2','6'];
var y = ['4', '5','6'];
如何找到在纯JavaScript和我在两个数组复制想避免使用循环?
输出 - duplicates: 6
尝试这样:
var x = ['1','2','6'];
var y = ['4', '5','6'];
var overlap = x.filter(function(v,i,a){
return y.indexOf(v) > -1;
});
console.log(overlap); // ['6']
这是否工作,为你的目的是什么?
试试这个
var x = ['1','2','6'];
var y = ['4', '5','6'];
var duplicate = [];
for (var i=0; i<y.length; i++) {
var index = x.indexOf(y[i]);
if (index > -1) {
duplicate.push(x[index]);
}
}
Output: ["6"]
“我想避免使用循环” –
@DavidBarker好吧。它是'O(array1.length * array2.length)',但对于相当小的阵列和现代硬件,这不应该远程引起问题 –
是否需要是纯JS或者您可以使用Underscore.js或jQuery的? –
嗨,纯粹! @Jezzabeanz – sbaaaang
http://stackoverflow.com/questions/1885557/simplest-code-for-array-intersection-in-javascript – phts