Guards

Overview

Guards are functions that are used to check if a value meets certain criteria. They are often used in conjunction with other functions or methods to ensure that the input is valid before proceeding.

Satisfies type FnGuard

Basic guards

These guards filters the only one simple type

• isNumber - the same as typeof value === 'number'
• isString - the same as typeof value === 'string'
• isBoolean - the same as typeof value === 'boolean'
• isSymbol - the same as typeof value === 'symbol'
• isBigInt - the same as typeof value === 'bigint'
• isArray - the same as Array.isArray(value)
• isObject - checks if the value is an object and not null

Aliases guards

These guards filters the set of types

• isFalsy - checks if the value is falsy (false, 0, '', null, undefined)
• isNullish - checks if the value is null or undefined
• isNumeric - checks if the value is a number or bigint
• isCollection - checks if the value is an array or object
• isPrimitive - checks if the value is a primitive type (number, string, boolean, symbol, bigint, null, undefined)