30 lines
556 B
Markdown
30 lines
556 B
Markdown
---
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title: String is valid JSON
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type: snippet
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language: javascript
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tags: [type]
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cover: italian-horizon
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dateModified: 2020-10-18T13:49:49+03:00
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---
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Checks if the provided string is a valid JSON.
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- Use `JSON.parse()` and a `try...catch` block to check if the provided string is a valid JSON.
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```js
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const isValidJSON = str => {
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try {
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JSON.parse(str);
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return true;
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} catch (e) {
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return false;
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}
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};
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```
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```js
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isValidJSON('{"name":"Adam","age":20}'); // true
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isValidJSON('{"name":"Adam",age:"20"}'); // false
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isValidJSON(null); // true
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```
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