side effect

What is a Return Value? (Easily Explained with Examples!)

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A side effect is what happens when a function shows a dialog box or writes text on the screen of your computer. By definition, a side effect is something that changes the way a machine works and potentially affects what comes after it. On the other hand, a function can also produce values that don’t … Read more

What Are Expressions and Statements in JavaScript?

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What is an expression in JavaScript? An expression is a fragment of code that produces a value. For example, you got literal values like 43 or “happy.” These are always expressions! Expressions are also considered something in between parentheses. Binary and unary operators that hold 2 expression values or 1 are also fully considered expressions … Read more