JavaScript中的小迭代

Question

嗨，我有一个小问题。

有人可以告诉我如何将这个字符串分成json格式的数据吗？

one:apple;two:orange;three:bananna;four:pears

看起来像这样

{
  one: apple,
  two: orange,
  three: bananna,
  four: pears
}

Answer 1

在String#split使用Array#forEach

 var str = "one:apple;two:orange;three:bananna;four:pears"; var obj = {}; str.split(';').forEach(function(el) { var x = el.split(':'); obj[x[0]] = x[1]; }); console.log(obj); 

或使用Array#reduce

comma operator评估每个操作数（从左到右）并返回最后一个操作数的值。

 var str = "one:apple;two:orange;three:bananna;four:pears"; var obj = str.split(';').reduce(function(a, b) { var x = b.split(':'); return a[x[0]] = x[1], a; }, {}); console.log(obj); 

Answer 2

演示

var str = "one:apple;two:orange;three:bananna;four:pears";
var arr = str.split(';'), obj = {}, i = 0;
for(; i < arr.length; i++){
  var x = arr[i].split(':');
  obj[x[0]] = x[1]
};
console.log(obj);
x = null;

// thanks to @Rayon for edit

Answer 3

您可以使用正则表达式来执行此操作。

 var str = "one:apple;two:orange;three:bananna;four:pears" var obj = '{"'+ str.replace(/;/g, ',').replace(/[:+,]/g, '"$&"') + '"}' console.log(JSON.parse(obj))