Digital Prizm Interview Questions and Answers

The difference between == and === is that == checks for equality after type conversion, while === checks for equality without type conversion.

• == is a loose equality operator that performs type coercion before comparing two values.

• === is a strict equality operator that does not perform type coercion before comparing two values.

• Example: '5' == 5 will return true, but '5' === 5 will return false.

CSS opacity is a property that controls the transparency of an element.

• Opacity values range from 0 (completely transparent) to 1 (completely opaque)

• Can be applied to any HTML element using CSS

• Useful for creating overlay effects or fading animations

Block scope in CSS refers to the scope of variables declared within a block of code, such as within curly braces {}.

• Variables declared within a block are only accessible within that block

• Block scope helps prevent naming conflicts and keeps code organized

• Example: .container { color: red; } .container { color: blue; } - the second declaration will not affect the first due to block scope