Enhance the textarea using Javascript when clicked

Question

Enhance the textarea using Javascript when clicked

I am experimenting with styling my textarea using a combination of JAVASCRIPT and CSS. The goal is to make it expand in size from 20px height to 120px height when clicked, using

document.getElementById("tweet_area")

. However, I am facing an issue where the textarea expands upon any click on the page, rather than just when clicking the textarea itself. Can someone assist me with this? I am new to JavaScript.

<script language="javascript">

      document.onclick=changeElement;

      function changeElement() {

          var textarea = document.getElementById("tweet_area");

          textarea.style.backgroundColor="#fff";
          textarea.style.width="565px";
          textarea.style.color="#000";
          textarea.style.height="120px";
          textarea.style.paddingLeft="1px";
          textarea.style.paddingTop="1px";
          textarea.style.fontFamily="Tahoma";
          textarea.style.fontSize="10pt";
          textarea.style.border="groove 1px #e5eaf1";
          textarea.style.position="inherit";
          textarea.style.textDecoration="none";  
      }

</script> 


<style type="text/css">
#tweet_area{
    width:565px;
    height:25px;
    overflow:hidden;
    margin:1px auto;
    font-family:Tahoma;
    font-size:10pt;
    font-weight:400px;
    color:#000;
    max-width:565px;
    min-width:565px;
    min-height:25px;
    max-height:120px;
    border:groove 1px #e5eaf1;
    padding-right:10px;
}
</style>

javascript css

Answer 1

Answer №1

Your click handler is currently applied to the entire document:

document.onclick=changeElement;

This means it will respond to a click anywhere on the page. To make it specific to the textarea, try applying it only to the textarea element:

document.getElementById("tweet_area").onclick=changeElement;

Keep in mind that for document.getElementById() to locate your element, the script must be executed after the element has been parsed. You can either place the script block after the element (typically at the end of the body) or wrap your JS code within a window.onload handler.

Additionally, as a recommendation, instead of setting individual styles in your JS function, consider creating a CSS class with those styles and then simply adding the class using your JS code.

Answer 2

Your click handler is currently applied to the entire document:

document.onclick=changeElement;

This means it will respond to a click anywhere on the page. To make it specific to the textarea, try applying it only to the textarea element:

document.getElementById("tweet_area").onclick=changeElement;

Keep in mind that for document.getElementById() to locate your element, the script must be executed after the element has been parsed. You can either place the script block after the element (typically at the end of the body) or wrap your JS code within a window.onload handler.

Additionally, as a recommendation, instead of setting individual styles in your JS function, consider creating a CSS class with those styles and then simply adding the class using your JS code.

Answer 3

Answer №2

Utilize CSS to customize your textarea, eliminating the need for javascript styling in this case. Create your style in CSS within a specific class and simply add this class and its properties when necessary. This approach offers a more organized solution. Use focus and blur events to access the textarea element. Check out this example.

HTML

<textarea rows="4" cols="50" id="txtArea">

<textarea>

JS

$(document).ready(function() {

    $('#txtArea').on("focus", function(event) {

        if(!$('#txtArea').hasClass('customTextAreaClass')){

            $('#txtArea').addClass('customTextAreaClass');

        }
    });

    $('#txtArea').on("blur", function(event) {

        if($('#txtArea').hasClass('customTextAreaClass')){

            $('#txtArea').removeClass('customTextAreaClass');

        }
    });
});

CSS

.customTextAreaClass{
    background-color: #fff;
    width: 565px;
    color: #000;
    height: 120px;
    padding-left: 1px;
    padding-top: 1px;
    font-family: "Tahoma", Geneva, sans-serif;
    font-size: 10pt;
    border: groove 1px #e5eaf1;
    position: inherit;
    text-decoration: none;  
}

Answer 4

Utilize CSS to customize your textarea, eliminating the need for javascript styling in this case. Create your style in CSS within a specific class and simply add this class and its properties when necessary. This approach offers a more organized solution. Use focus and blur events to access the textarea element. Check out this example.

HTML

<textarea rows="4" cols="50" id="txtArea">

<textarea>

JS

$(document).ready(function() {

    $('#txtArea').on("focus", function(event) {

        if(!$('#txtArea').hasClass('customTextAreaClass')){

            $('#txtArea').addClass('customTextAreaClass');

        }
    });

    $('#txtArea').on("blur", function(event) {

        if($('#txtArea').hasClass('customTextAreaClass')){

            $('#txtArea').removeClass('customTextAreaClass');

        }
    });
});

CSS

.customTextAreaClass{
    background-color: #fff;
    width: 565px;
    color: #000;
    height: 120px;
    padding-left: 1px;
    padding-top: 1px;
    font-family: "Tahoma", Geneva, sans-serif;
    font-size: 10pt;
    border: groove 1px #e5eaf1;
    position: inherit;
    text-decoration: none;  
}

Answer 5

Answer №3

I recently created a jQuery script to resize a Textarea when the user hits the Enter Key within the designated field. Alternatively, you could modify the script to work with a Click Event for the Textarea.

You can find the code snippet here: https://example.com/post123456

Answer 6

I recently created a jQuery script to resize a Textarea when the user hits the Enter Key within the designated field. Alternatively, you could modify the script to work with a Click Event for the Textarea.

You can find the code snippet here: https://example.com/post123456

Enhance the textarea using Javascript when clicked

Answer №1

Answer №2

Answer №3

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