What is the following construct generally used for in JavaScript? (function () { // ... })();

What's the output? (function () { 'use strict'; var x = 'hello'; })(); x = 0; console.log(x);

Which character combination is used to alter the order of operations by grouping expressions?

Which statement about JavaScript REFLECT object is NOT correct?

Which is the correct syntax of the Object.getOwnPropertyDescriptor method that is used for querying the full information about a property?

What's the output? var x = 5; var y = 0; document.write( let(x = x + 10, y = 12) x+y + ','); document.write(x+y);

One possible way to collect realtime statistics about traffic on a WordPress site is:

How can a custom content filter be added?

Correct way to get WordPress Post ID from the Post title?

Is super cache a built-in plugin of WordPress?

Which functions are used when adding CSS and jQuery codes on a WordPress plugin?