Question

我在java中有这样的地图：

"{one=Print, two=Email, three=Download, four=Send to Cloud}";

我需要在jquery中将上面的字符串转换为数组并循环数组并获取相应的键和值

Answer 1

使用String#slice，String#trim，Array#forEach和String#split方法。

var str = "{one=Print, two=Email, three=Download, four=Send to Cloud}";

str
// remove the space at start and end
  .trim()
  // get string without `{` and `}`
  .slice(1, -1)
  // split by `,`
  .split(',')
  // iterate over the array
  .forEach(function(v) {
    // split by `=`
    var val = v.trim().split('=');
    console.log('key : ' + val[0] + ", value : " + val[1])
  })

更新：如果您要生成对象，请使用Array#reduce方法。

var str = "{one=Print, two=Email, three=Download, four=Send to Cloud}";

var res = str
  .trim()
  .slice(1, -1)
  .split(',')
  .reduce(function(obj, v) {
    var val = v.trim().split('=');
    // define object property
    obj[val[0]] = val[1];
    // return object reference
    return obj;
    // set initial parameter as empty object
  }, {})

console.log(res)

Answer 2

这是一个简单的黑客攻击：

let arr = jsons.replace('{','').replace('}','').split(',')
arr.map((each)=>{let newVal = each.split('='); return {key: newVal[0], value: newVal[1]}})

Answer 3

试试这个：

function convertString(string) {
  return string.split(', ').map(function(a) {
    var kvArr = a.split('=');
    return {key: kvArr[0], value: kvArr[1]};
  };
}

function convertString(string) {
      string = string.slice(1, string.length - 1);
      return string.split(', ').map(function(a) {
        var kvArr = a.split('=');
        return {key: kvArr[0], value: kvArr[1]};
      });
}

alert(JSON.stringify(convertString("{one=Print, two=Email, three=Download, four=Send to Cloud}")));

将map <string，string>转换为jquery中的数组

3 个答案: