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prevent app freezes when use JSON.parse

prevent app freezes when use JSON.parse

prevent app freezes when use JSON.parse

prevent app freezes when use JSON.parse

작성일 : 2023.05.19

TIL
JavaScript

use JSON.parse

  • Parse json to an object or value.
  • but, Sometimes value to pars is not json.
  • so, JSON.parse code causes error
  • Use try catch to prevent apps from stopping at that time.

example

const parseJSON = (str) => {
    try {
        return JSON.parse(str);
    } catch {
        console.error("str is not JSON::", str);
        return ''; //return empty string;
    }
}

Reference

copyright by dabin jeong