How to convert string to object in nodejs

Nodejs method of converting strings into objects: 1. Use the eval() function, syntax "eval('(' str ')')"; 2. Use the "JSON.parse()" function, Syntax "JSON.parse(str)".

The operating environment of this tutorial: windows7 system, nodejs version 12.19.0, DELL G3 computer.

Conversion between NodeJS objects and strings

String to object:

1, use eval function

var str='{"F001":true,"F002":false,"F003":false }';
var obj = eval('('+str+')'); //必须加括号才可以将该字符串转换成对象，加括号表示运行里面的代码。
console.log(obj.F001);//true

2, use JSON.parse function

var str='{"F001":true,"F002":false,"F003":false }'; //属性名必须已经被引号括起，否则转换将失败。
var obj=JSON.parse(str);
console.log(obj.F002); //false

Object to string:

var obj={F001:true,F002:false,F003:false };
console.log(JSON.stringify(obj));//Node原生支持JSON
//{"F001":true,"F002":false,"F003":false}

For more node-related knowledge, please visit: nodejs tutorial! !

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