I have an external javascript file where I wrote jquery codes and javascript codes but the javascript codes aren't working only the alert is working.
I want some texts to flash different colors but it doesn't.
When I inspect elements using ctrl+shift+i I see the colors changing under inspect element, but it doesn't change in the webpage.
Something like it's running on the background or what I really don't know.
function flash() { var text = document.getElementById('sales'); text.style.color=(text.style.color=='red')? 'green' : 'red'; } var clr = setInterval(flash, 500)<p id="sales"> <h3 style ="text-align: center; font-weight: bold;"> Flash Sales </h3></p>If you properly check the inspection, you'll see that your HTML was changed from what you have. A <p> element cannot contain a <h3> element, and the DOM has been changed to <p id="sales"></p><h3>...</h3>.
As such, your CSS is being applied to the wrong place.
function flash() { var text = document.getElementById('sales'); text.style.color=(text.style.color=='red')? 'green' : 'red'; } var clr = setInterval(flash, 500)<h3 id="sales" style ="text-align: center; font-weight: bold;"> Flash Sales </h3>I was able to solve the issue by removing the in-line styling all the way from the <h3 tag and styled it in css.
In pure java script
document.querySelector('element name').style.color = 'red';
In jquery
$('element name').css({red : 'red'});