Can you explain why I am unable to set the scale for this div?
var a = 0.1;
var b = 0.1;
var scale = a+b;
$(".item").css('scale', scale).item {
width: 100px;
height: 100px;
background: blue;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="item"></div>According to the provided information:
When a numeric value is passed, jQuery automatically converts it to a string and appends "px" at the end. If the property requires units other than pixels, make sure to convert the value to a string and include the appropriate units before using the method.
Hence, it is important for the parameter to be in string format rather than a number:
var width = 50;
var height = 75;
var dimension = width + height;
$(".box").css('dimension', dimension.toString()).box {
width: 200px;
height: 150px;
background-color: green;
}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<div class="box"></div>Instead of using jQuery, you can achieve the same result with plain JavaScript and CSS variables. For example, you can set the scale property using
.css("scale", `${scale}`).css("scale", scale.toString())Here is an example using JavaScript and CSS Variable:
const a = 0.1;
const b = 0.1;
const scale = a + b;
document.querySelectorAll(".item").forEach((elItem) => {
elItem.style.setProperty("--scale", scale);
});.item {
width: 100px;
height: 100px;
background: blue;
scale: var(--scale, 1); /* Use --scale CSSVar or default to 1 */
}<div class="item"></div>Check out MDN's guide on Using CSS custom properties
Learn more about CSS var() on MDN
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