Get First Character of String with JavaScript

In this tutorial we will learn How To Get First Character of String with JavaScript. JavaScript charAt() method or slice() method both can be used to get the first character of string in JavaScript.

HTML Code

HTML Code is given below, in this code we have used input tag to get a string from user while a Button tag is used to execute a JavaScript function which will get the First character of that string.

<input id='string' type="text" placeholder="String:">
<br><br>       
<button onclick="getFirstCharacter()">Get First Character</button>  

JavaScript Code

Take a look at the JavaScript code, in first example we have used JavaScript charAt() method and in second example we have used JavaScript slice() method.

JavaScript charAt() method

JavaScript charAt() method returns a specific character from the fixed index position.

<script>
function getFirstCharacter()
{
    const string = document.getElementById('string').value;
    const stringLength = string.length;
    const FirstCharacter =  string.charAt(0);
    alert(FirstCharacter);
}
</script>

JavaScript slice() method

JavaScript slice() method returns a part of string.

<script>
function getFirstCharacter()
{
    const string = document.getElementById('string').value;
    const FirstCharacter =  string.slice(0,1);
    alert(FirstCharacter);
}
</script>

In above example, 0 is the start position of the string while 1 is the end position which means only one character will be returned.

Demo

Video Tutorial

Watch video tutorial on Get First Character of String in JavaScript.

How to Change Image on Hover with JavaScript How to Disable Button by Class Name in JavaScript How To Change Image Size with JavaScript How to change Image opacity with JavaScript How to Change image src on click with JavaScript How to get the lang attribute value in JavaScript How to Get attribute Value using JavaScript How To Check if Attribute Exists or not with JavaScript How To Count number of links on Page with JavaScript How To Scroll Page to Bottom using JavaScript How To Detect Shift Key Press with JavaScript Change Text Color On Hover with JavaScript Hide and Show div using JavaScript Get Button text with JavaScript Get textarea value with JavaScript Get table row Height with JavaScript Auto Increase width of input field with JavaScript Set Textarea maxLength with JavaScript Set Textarea Value with JavaScript JavaScript Count list items JavaScript set input field value Count Button Clicks with JavaScript Scroll Page to the Top on Click with JavaScript Change id of Element with JavaScript JavaScript Change li Text Color