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This article mainly introduces how nodejs converts a string into an object, which has a certain reference value. Interested friends can refer to it. I hope you will gain a lot after reading this article.

Nodejs converts a string into an object: 1, use the eval () function, syntax "eval ('('+ str+')')"; 2, use "JSON.parse ()" function, syntax "JSON.parse (str)".

This tutorial operating environment: windows7 system, nodejs version 12.19.0, DELL G3 computer.

Conversion between NodeJS object and string

String transfer object:

1, use the eval function

Var str=' {"F001": true, "F002": false, "F003": false}'; var obj = eval ('('+ str+')'); / / you must put parentheses to convert the string to an object, and parentheses indicate running the code inside. Console.log (obj.F001); / / true

2, use the JSON.parse function

Var str=' {"F001": true, "F002": false, "F003": false}'; / / the attribute name must be enclosed in quotation marks, otherwise the conversion will fail. Var obj=JSON.parse (str); console.log (obj.F002); / / false

Object to string:

Var obj= {F001 JSON.stringify obj) F002 JSON.stringify false}; / / Node native support JSON// {"F001": true, "F002": false, "F003": false} Thank you for reading this article carefully. I hope the article "nodejs how to convert a string into an object" shared by the editor is helpful to you. At the same time, I also hope you can support us, pay attention to the industry information channel, and more related knowledge is waiting for you to learn!

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