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VisualizaçõesWhy does insertBefore work weirdly with the span element?
I am trying to add a span element before a referenced span element. However, there seems to be no space between the new element and the referenced span element.
// Create a new, plain <span> element
let sp1 = document.createElement("span");
// Set class attribute and value
sp1.setAttribute("class", "new-element");
// Write content to element
sp1.innerText = "foo bar";
// Get the reference element
let sp2 = document.querySelector(".third-element");
// Get the parent element
let parentDiv = sp2.parentNode;
// Insert the new element into before sp2
parentDiv.insertBefore(sp1, sp2);<div id="main-container">
<span>foo bar</span>
<span>foo bar</span>
<span class="third-element">foo bar</span>
<span>foo bar</span>
</div>
·
Juan Pablo Isaza
1 Respostas
Responde à pergunta0
In your HTML, you have a line break after each span element which ends up being turned into a space character (technically not a space character, but the browser shows it to you this way). When you add a span with javascript, it gets inserted inline like this:
<span>new element</span><span>existing element</span>
When spans are inline with no line break, the browser does not render that magic space character. The easiest fix for this is to add some margin-right with CSS, or to just to append a space character to the text in your spans like so:
<span>This is my text </span>
·
Juan Pablo Isaza
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