null is treated in a special way by the Equals Operator (==). In a brief, it only coerces to undefined: Values false, '0', and [] are subject to numeric coercion to zero. Strings coerce to zero when, …

Nov 16, 2012 · null casts to 0 as a number: (+null) is 0. > and < cast null to this value, so when compared to numbers it acts as zero. == doesn't cast null to a number, so null == 0 is false.

Jan 8, 2014 · Is null evaluated to 0 and undefined to NaN on arithmetic expressions? Is it safe or correct to assume this? Yes, it is. An "arithmetic expression" would use the ToNumber …

Mar 13, 2025 · The null value represents the intentional absence of any object value. It is one of JavaScript's primitive values and is treated as falsy for boolean operations.

Feb 9, 2018 · Null is not equal to 0 because null is a value, it as far as the language is concerned is nothingness. null does not get coerced into a number. Per the JavaScript specification, null …

Let’s walk through this algorithm with our statement - null > 0. Steps 1 and 2 ask us to call ToPrimitive()on nulland 0respectively to convert these values to their primitive value types …

Mar 4, 2024 · Use the logical nullish assignment operator to convert null or undefined to 0, e.g. val ??= 0;. The logical nullish assignment (??=) operator assigns the provided value to the …

Jun 9, 2024 · At first glance, it may seem puzzling why `0 >= null` evaluates to true while `0 == null` evaluates to false. This article delves into the underlying mechanics of JavaScript’s type...

Jun 17, 2023 · This pithy, example-based article will show you a few different ways to convert null, NaN, undefined, and false to 0 in modern JavaScript.

Mar 16, 2022 · You can do this: a = a || 0 ...which will convert a from any "falsey" value to 0. The "falsey" values are: false null undefined 0 "" ( empty string ) NaN ( Not a Number )