When we don’t need our JavaScript code to be available as soon as the page loads, we can script-load our external JavaScript after the window.onload event.
73.
What are the parameters of the attachEvent function?
The render time is calculated as Date.Now() – performance.timing.domLoading.
79.
The object whose properties are inherited by all instances of the class, and properties whose values are functions behaving like instance methods of the class, is
The properties of the prototype object are inhertied by all instances of the class, and properties whose values are functions behave like instance methods of the class.
80.
You can refresh the webpage in JavaScript by using