isNull

Using

This function determines whether the given value is exactly null.

• Returns true only for the null literal.
• Returns false for any other value, including undefined, false, 0, "", NaN, objects, arrays, and other falsy types.

Demo - use JSON

isNull(
 
)

true

Arguments

Argument	Type	Description	Example
value	unknown	Can be any type	"text" 2 undefined

Returns

boolean — true if value is null, false otherwise

Examples

isNull(null);
// true

isNull(undefined);
// false

isNull(0);
// false

isNull('');
// false

isNull({});
// false

isNull(Object.create(null));
// false

isNull(() => null);
// false

Resources

📦 Since:1.3.0

📦 Last updated:1.3.0

📦 Available in:1.3.0

Source codeCode sandbox