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The localStorage object stores the data with no expiration date. The data will not be deleted when the browser is closed, and will be available the next day, week, or year. |
Learn localStorage Object
<script>
// Store
localStorage.setItem("lastname", "Smith");
// Retrieve
document.getElementById("result").innerHTML = localStorage.getItem("lastname");
</script>Output should be:
Example explained: localStorage Object
- Create a localStorage name/value pair with name="lastname" and value="Smith"
- Retrieve the value of "lastname" and insert it into the element with id="result"
The example above could also be written like this:
// Store
localStorage.lastname = "Smith";
// Retrieve
document.getElementById("result").innerHTML = localStorage.lastname;Output should be:
The syntax for removing the 'lastname' localStorage item is as follows:
<script>
localStorage.removeItem("lastname");
</script>Note: Name/value pairs are always stored as strings. Remember to convert them to another format when needed!
The following example counts the number of times a user has clicked a button. In this code the value string is converted to a number to be able to increase the counter:
<script>
if (localStorage.clickcount) {
localStorage.clickcount = Number(localStorage.clickcount) + 1;
} else {
localStorage.clickcount = 1;
}
document.getElementById("result").innerHTML = "You have clicked the button " +
localStorage.clickcount + " time(s).";
</script>Output should be:
Category: | Web Tutorial |
Sub Category: | HTML Web Storage API |
Uploaded by: | Admin |
Read Articlehttps://develop.horje.com/learn/1434/reference