使用 javascript 自动切换的元素

Question

I'm trying to make an element that toggles by itself. For a example, I want <p>Text1</p> to switch to <p>Text2</p> in 1 second. Is there any javascript code I can use?

Here's an example of what i'm trying to do:

Text-toggling

Answer 1

You could use the setTimeout(//function,n*1000) function in order for it to be done automatically after n seconds

With your example lets say you have:

 let s = 1000; // second in milliseconds let n = 3; //let's say you want it to change after 3 seconds function changeText() { document.getElementById('text').innerText = 'Text2' } setTimeout(() => { changeText() }, n * s); // you could also use setTimeout(function () { changeText() }, n * s);

 <p id="text">Text1</p> <!-- give the element an id ("text") in this example -->

Answer 2

You need to assign a class or an ID to element, eg. <p id="el">...</p> , so that you can query it later on. Then, get it viadocument.getElementById or document.getElementByClassName : document.getElementById('el') .

Now you got the element, time to change the text inside it, so access it via the innerText property, then assign a new value.

Alright, you want it to do it in one second, so set a timeout:

setTimeout(() => { /** ... */ }, 1000);

Note: 1000 is 1 second.

Answer 3

An easy way would be to assign each element an id. Then in javascript, call setInterval or setTimeout . Every second, get the documents by id and toggle their CSS visibility style.