So I have a variable in my script var mystring = "123" and my web page look like this
<body>
<div id="footer">
123
</div> </body>
I need a script that checks if the variable is the same as the footer content and if is not, replace it.
Just like this :
a="123";
if a == html.content.from.footer then
do nothing;
else
replace html.content.from.footer with a;
There's no need to check if the values are equal, because if you replace a value with an equal value then there's no change anyway. So all you really need to do is replace the value. Something like this:
document.getElementById('footer').innerHTML = mystring;
Using jQuery, this is simple:
if($("#footer").html() !== mystring) {
$("#footer").html(mystring)
}
Without jQuery:
if(document.getElementById('footer').innerHTML !== mystring) {
document.getElementById('footer').innerHTML = mystring;
}
Here,
<script>
var mystring = "123";
var footer = document.getElementById("footer");
if(footer.innerHTML != mystring){
footer.innderHTML = mystring;
}
</script>
PS. I agree with David that you don't need to check if you know the string you want in the footer anyway. Just adding the script with the if block because you asked it that way. Hope this helps.
var myVar = '1234';
var element = document.getElementById('footer');
if(myVar != element.innerHTML) {
element.innerHTML = myVar;
}
