set a variable to a local storage value in javascript

To set a variable to a local storage value in JavaScript, you can use the localStorage.getItem() method. This method retrieves the value of the specified item from the local storage and returns it as a string. To convert the value to the desired data type, you can use JavaScript's built-in type conversion methods such as parseInt() or parseFloat().

Here's an example:

index.tsx
// Set a value in local storage
localStorage.setItem('myVariable', '42');

// Get the value from local storage and assign it to a variable
var myVariable = parseInt(localStorage.getItem('myVariable'));

// Use the variable
console.log(myVariable); // Output: 42 (as a number)
276 chars
9 lines

In this example, we first set a value of '42' to the key 'myVariable' in the local storage using the localStorage.setItem() method. Then, we retrieve the value using the localStorage.getItem() method and assign it to the variable myVariable by using the parseInt() method to convert the value from a string to a number.

Note that local storage is specific to each website domain and can only store values as strings. Any other data types must be converted to and from strings.