数组字符串json之间的相互转换

数组转字符串

var arr = [1,2,3,4,'巴德','merge']; var str = arr.join(','); console.log(str); // 1,2,3,4,巴德,merge

 

字符串转数组

var str = '1,2,3,4,巴德,merge'; var arr = str.split(','); console.log(arr); // ["1", "2", "3", "4", "巴德", "merge"] 数组 console.log(arr[4]); // 巴德

 

字符串转数组，数组转数组格式化，数组格式化转数组

var str = '1,2,3,4,巴德,merge'; var arr = str.split(','); var strify = JSON.stringify(arr); console.log(arr); // ["1", "2", "3", "4", "巴德", "merge"] 数组 console.log(arr[4]); // 巴德 console.log(strify); // ["1", "2", "3", "4", "巴德", "merge"] 字符串

var arrParse = JSON.parse(strify);

console.log(arrParse); // ["1", "2", "3", "4", "巴德", "merge"] 数组

 

json字符串、json对象、数组 三者之间的转换

<script>

//json字符串、json对象、数组 三者之间的转换

let jsonStr = '[{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"01","open":false,"pId":"0","name":"A部门"},{"id":"011","open":false,"pId":"01","name":"A部门"},{"id":"03","open":false,"pId":"0","name":"A部门"},{"id":"04","open":false,"pId":"0","name":"A部门"}, {"id":"05","open":false,"pId":"0","name":"A部门"}, {"id":"06","open":false,"pId":"0","name":"A部门"}]';

let jsonObj = $.parseJSON(jsonStr);//json字符串转化成json对象(jq方法)

//var jsonObj = JSON.parse(jsonStr)//json字符串转化成json对象（原生方法）

let jsonStr1 = JSON.stringify(jsonObj)//json对象转化成json字符串

 

//console.log(jsonStr1+"jsonStr1")

 

//json对象转化成json数组对象

let arr1=[];

for(let i in jsonObj){

//var o={};

//o[i]=jsonObj[i];

arr1.push(jsonObj[i]);

}

//console.log(arr1);

//console.log(typeof(arr));

var jsonStr11 = JSON.stringify(arr1)//json数组转化成json字符串

//console.log(jsonStr11);

var jsonArr = [];

for(var i in jsonObj){

jsonArr[i] = jsonObj[i];

}

//console.log(jsonArr);

//console.log(typeof(jsonArr))

</script>

将对象转化成数组第二种方式

<script>

//将对象转化为数组

let obj={'未完成':5,'已完成':8,'待确认':4,'已取消':6};

var arr = [];

for (let i in obj) {

//arr.push(obj[i]); //属性

//arr.push(obj[i]); //值

var o={};

o[i]=obj[i];

arr.push(o);

}

 

function objToArray(array) {

var arr = [];

for (var i in array) {

var o={};

o[i]=array[i];

arr.push(o);

}

console.log(arr);

//return arr;

}

// console.log(arr)

objToArray(obj);

</script>