How to check if the localStorage key exists or not in JavaScript
In this post we will give you information about How to check if the localStorage key exists or not in JavaScript. Hear we will give you detail about How to check if the localStorage key exists or not in JavaScriptAnd how to use it also give you demo for it if it is necessary.
we are going to learn about checking a key exists or not in localStorage using JavaScript.
Using the localStorage.getItem() method
To check if a key exists or not in localStorage, we can use the localStorage.getItem() method.
The localStorage.getItem() method takes the key as an argument and returns the key’s value. if a key doesn’t exist it returns the null.
Here is an example:
const name = localStorage.getItem('name');if(name){ console.log('Name exists');}else{ console.log('Name is not found');}In the above example, if a name key exists in the localStorage it prints the if block statement or it prints the else block statement if a key doesn’t exist.
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