I am trying to build a solution where I need to make certain calculations on a label with certain text in it. However, I don't want to render that label on the page. Once, the calculations are made, the label can be discarded.
Is it possible in JavaScript to create such a label in the memory for calculations and not render it on the page? I don't want to render even a hidden control, as even that would need some space and modification on the web page.
You will need to append the element to the DOM if you want to do calculations based on the rendered size of the element. Here's a way to do that without affecting the layout of your page:
const hiddenLabel = document.createElement("span");
hiddenLabel.innerHTML = "Some Text";
Object.assign(hiddenLabel.style, {
position: "absolute", // removes element from document flow
visibility: "hidden", // element invisible, but layout still computed
});
document.body.appendChild(hiddenLabel);
// inspect dimensions of the rendered element.
console.log(hiddenLabel.getBoundingClientRect().width);
This particular example might be useful if, for example, you're trying to resize an input field based on the length of the input.