Which of the following statements regarding this String prototype is correct? String.prototype.doSomething = function(suffix) { return this.indexOf(suffix, this.length - suffix.length) !== -1; };

Choose another way to write x ? a = b : a = c

Which is incorrect regarding Strict mode in JavaScript?

Which are true regarding the code below?

Consider the following code:

What's the output? contains(a, obj) { for (var i = 0; i < a.length; i++) { if (a[i] === obj) { return true; } } return false; }

Difference between calling a JavaScript function directly like onclick = 'a()' and onclick='JavaScript:a()' where a() is a function written in JavaScript?

You are allowing the user to upload image files. You want to be able to capture the attributes of the image such as width and height using JavaScript. How would this be possible?

Which are valid JavaScript methods?

Are the following two statements the same? object.property object[''property'']

Which one could you do using JavaScript?