How to change the src
attribute of a HTMLImageElement
in JavaScript?
I need help to convert logo.attr('src','img/rm2.png')
to vanilla JavaScript.
window.onresize = window.onload = function () {
if (window.innerWidth > 1536) {
var logo = document.getElementById('rm');
logo.attr('src','img/rm2.png');
}
};
You mean you want to use pure javascript?
This should do it:
var logo = document.getElementById('rm');
logo.src = "img/rm2.png";
So your function should look like :
window.onresize = window.onload = function () {
if (window.innerWidth > 1536) {
var logo = document.getElementById('rm');
logo.src = "img/rm2.png";
}
};
Note : You could also use element.setAttribute . BUT, see this post for more:
When to use setAttribute vs .attribute= in JavaScript?
try this...hope it works
window.onresize = window.onload = function () {
if (window.innerWidth > 1536) {
var logo = document.getElementById('rm');
logo.setAttribute('src','img/rm2.png');
}
};
So if you want to check if the size has changes and then changes back check code bellow.
window.onresize = window.onload = function () {
if (window.innerWidth < 768) {
var logo = document.getElementById('changeLeft');
logo.src = "MobileImage.png";
}else{
var logo = document.getElementById('changeLeft');
logo.src = "DesktopImage.png";
}
};
Adjust window.innerWidth to decide on your break points. Hope that helps.
我认为这只是logo.src = "img/rm2.png"
。
var logo = document.getElementById('rm');
logo.setAttribute('src', 'img/rm2.png');
Since you say you want to do this in different places of the program, I would create a function like this:
function ChangeImage(image_id,path)
{
document.images[image_id].src = path
}
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