Js Id Generator - Javascript

As a javascript programmer, sometimes you may need to generate unique id's for elements on the page. This can be useful for tracking, automation or simply to ensure that each new element on the page has a unique identifier. With the help of javascript, we can create a simple id generator that can generate unique id's for our elements.

The Code

Here's a simple implementation of an id generator function in javascript:

function generateUniqueId() {
    let id = "";
    const possible = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";

    for (let i = 0; i < 8; i++)
        id += possible.charAt(Math.floor(Math.random() * possible.length));

    return id;
}

console.log(generateUniqueId());

This code will generate a random string of 8 characters, consisting of uppercase and lowercase letters and digits.

How it works

The generateUniqueId() function creates an empty string called id. It then creates another string called possible that contains all possible characters that can be used in the generated id. The function then loops through this string 8 times, randomly selecting a character from the string and appending it to the id string. Finally, the function returns the generated id.

Usage

To use the generateUniqueId() function in your code, simply call the function and store the returned value in a variable:

let uniqueId = generateUniqueId();

You can then use the uniqueId variable to set the id attribute of an element on the page:

<div id="{uniqueId}">This is a unique div</div>

Conclusion

Generating unique ids for elements on the page is an important task for a javascript programmer. With the help of javascript, we can easily create an id generator function that can generate unique ids for our elements. This implementation is simple and effective, and can be expanded upon for more specific use cases.