我真的需要你的帮助。
我想构建和构建如下所示的数组。:
var provinces = [
['Ontario','ON'],
['Quebec','QC'],
['British Columbia','BC'],
['Saskatchewan','SK']
];
然后,id喜欢将值(x)与我的数组进行比较,即:
var x = 'Ontario'
if (x matches the value in the array list 'provinces') { then let x = ON }
你如何在javascript中写这样的东西?
非常感谢和感谢你的帮助,
答案 0 :(得分:0)
使用接收true / false返回条件的.filter()
函数从数组中检索itens:
var provinces = [
['Ontario','ON'],
['Quebec','QC'],
['British Columbia','BC'],
['Saskatchewan','SK']
];
var x = "Ontario";
//Find if any array item matches the word
var result = provinces.filter(function(item) {
return item[0] == x;
});
//If there's a match, get the second index from the first result from the filter
if(result.length > 0)
x = result[0][1];
alert(x);