Interview

What happens if we add an n suffix to a regular number in JavaScript? What’s the output? . . . . . . . . . . . . ....

What’s the difference between Object.toString and Array.toString in JavaScript? What’s the output? . . . . . . . . . . . . . . . . . A regular behavior of the JavaScript function Object....

How exactly Math.max works in JavaScript? What’s the output? . . . . . . . . . . . . . . . . . In JavaScript, the function Math....

True or false? What appears in the console? . . . . . . . . . . . . . . . . . JavaScript uses the double precision floating point numbers even to represent integers....

What’s the output? . . . . . . . . . . . . . . . . . In JavaScript, the typeof operator always returns a string. So, even though typeof undefined evaluates to undefined, it’s a string and not the primitive undefined value....

What will be logged to the console? . . . . . . . . . . . . . . . . . Before we analyze the code snippet, let’s try to simplify it by removing the setTimeout....

Can you add multiple arrays in JavaScript? What’s the output? . . . . . . . . . . . . . . . . . . The function add(x, y, z) applies the + operator to the provided arguments....

What’s the output? . . . . . . . . . . . . . . . . . . In this code snipped, all the arguments provided to the function split will be collected and placed in a single array args....

Does the new array property affect its length? Is such an assignment valid at all? . . . . . . . . . . . . . . ....

What’s the order of the output? . . . . . . . . . . . . . . . . . Both setTimeout and Promise.resolve are asynchronous actions, which means that the inner console....