How to check whether a local storage item is set with JavaScript?

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Sometimes, we want to check whether a local storage item is set with JavaScript.

In this article, we’ll look at how to check whether a local storage item is set with JavaScript.

How to check whether a local storage item is set with JavaScript?

To check whether a local storage item is set with JavaScript, we use the getItem method.

For instance, we write

if (localStorage.getItem("infiniteScrollEnabled") === null) {
  //...
}

to call localStorage.getItem with the key of the item we want to get.

If it returns null, then the entry with the key doesn’t exist.

Conclusion

To check whether a local storage item is set with JavaScript, we use the getItem method.

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