Steps to animate a div expanding to fit its content dimensions

Question

Steps to animate a div expanding to fit its content dimensions

I'm looking for a way to animate the opening of a div so that it adjusts to the size of its content. The content is fetched from a separate search using .load, which means it could be just a single line (no result) or multiple results that vary in height. I've read through numerous posts and tried different approaches, but haven't had any success so far.

My latest approach involves starting the animation with a small initial height so that it looks like the div is opening, then setting the height to auto so it expands to the final size. However, this method only animates the first part and doesn't adjust the height as intended. Here's an excerpt from my document ready function:

$( "#TwoSearch" ).click(function() {
    $("#div1").animate({ height:0 }, 500).empty(); <!--- close div 1 --->
    $("#div2").animate({ height:200 }, 500);
    SW=document.getElementById("SearchWords").value;
    $("#div2").load("TwoSearchExercise.cfm?SW=" + encodeURI(SW), function () {
        $('.js-lazyYT').lazyYT(); 
        $("#div2").css('height','auto');
        });
    });

Is there a more elegant solution to achieve this effect? I've attempted to retrieve the height from inside the div, but it doesn't seem to work.

PS: This is a ColdFusion app, so please disregard the ## notation.

jquery css animation

Answer 1

Answer №1

Your JavaScript code contains a couple of errors that need to be addressed: firstly, avoid using double ## as a selector as this can create confusion. secondly, having an HTML comment in your JavaScript code will result in a JavaScript error. In HTML files, comments are written like this: , while in JavaScript files, you should use // for single line comments and /* comment */ for multiline comments.

I had to make some adjustments to your code by commenting out the ajax part since I don't have a webserver available. Instead, I simulated it with a 1-second timeout. Here is the corrected code:

$( "#TwoSearch" ).click(function() {
    $("#div2").slideUp("fast");
    $("#div1").animate({ height:0 }, 500).empty();
    $("#div2").animate({ height:200 }, 500).empty();
    SW=document.getElementById("SearchWords").value;
    window.setTimeout(function() {
        var string = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. The quick brown fox jumps over the lazy dog. "
        var loops = Math.floor(Math.random() * 50);
        var finalstring = "";
        for (var i = 0; i < loops; i++) {
            finalstring+=string;
        }
        $("#div2").text(finalstring);
        $("#div2").slideDown("slow");
    }, 1000);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="TwoSearch">TwoSearch</button>
<input type="text" id="SearchWords" >
<div id="div1">
    
</div>

<div id="div2">
    
</div>

Answer 2

Your JavaScript code contains a couple of errors that need to be addressed: firstly, avoid using double ## as a selector as this can create confusion. secondly, having an HTML comment in your JavaScript code will result in a JavaScript error. In HTML files, comments are written like this: , while in JavaScript files, you should use // for single line comments and /* comment */ for multiline comments.

I had to make some adjustments to your code by commenting out the ajax part since I don't have a webserver available. Instead, I simulated it with a 1-second timeout. Here is the corrected code:

$( "#TwoSearch" ).click(function() {
    $("#div2").slideUp("fast");
    $("#div1").animate({ height:0 }, 500).empty();
    $("#div2").animate({ height:200 }, 500).empty();
    SW=document.getElementById("SearchWords").value;
    window.setTimeout(function() {
        var string = "Lorem ipsum dolor sit amet, consectetur adipiscing elit. The quick brown fox jumps over the lazy dog. "
        var loops = Math.floor(Math.random() * 50);
        var finalstring = "";
        for (var i = 0; i < loops; i++) {
            finalstring+=string;
        }
        $("#div2").text(finalstring);
        $("#div2").slideDown("slow");
    }, 1000);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<button id="TwoSearch">TwoSearch</button>
<input type="text" id="SearchWords" >
<div id="div1">
    
</div>

<div id="div2">
    
</div>

Steps to animate a div expanding to fit its content dimensions

Answer №1

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