javascript - javascript中的小迭代

Question

大家好，我有个小问题。

谁能告诉我如何将这个字符串分离成 json 格式的数据？

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

看起来像这样

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

Answer 1

使用Array#forEach在 String#split

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计算它的每个操作数(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);