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32 packages found
Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.
A simple utility to Check the value is number or can convert to a number, for example string ' 123 ' can be converted to 123.
An ES-spec-compliant Number.isFinite shim/polyfill/replacement that works as far down as ES3
The lodash method `_.isFinite` exported as a module.
Test if a double-precision floating-point numeric value is finite.
- stdlib
- stdmath
- assertion
- assert
- utilities
- utility
- utils
- util
- math
- mathematics
- ieee754
- floating-point
- float
- double
- View more
The ts-is-number a utility npm package that checks if a given input is a valid finite number or a string that can be converted to a valid finite number.
Test if a value is a finite number.
Test if a double-precision floating-point numeric value is a negative finite number.
Test if a numeric value is a nonpositive finite number.
Test if a double-precision floating-point numeric value is a positive finite number.
Test if a numeric value is a nonnegative finite number.
A small set of functions to check value against a specific type
- type
- check
- guard
- isNumber
- isArray
- isString
- checker
- isFinite
- undefined
- null
- primitive
- isFunction
- function
- isUndefined
Simple type checker in JavaScript.
- utils
- util
- type checking
- type checker
- type
- checker
- isAlpha
- isAlphanumeric
- isArguments
- isArray
- isBoolean
- isDate
- isDecimal
- isDefined
- View more
The `Number.isFinite()` method determines whether the passed value is a finite number.
Test if a value is an array-like object containing only finite numbers.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- typed
- array
- typed array
- is
- istypedarray
- istyped
- View more
Test if a value is a number having a finite negative value.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- number
- numeric
- negative
- is
- isnumber
- isnumeric
- View more
Test if a value is a number having a finite positive value.
- stdlib
- stdassert
- assertion
- assert
- utilities
- utility
- utils
- util
- number
- numeric
- positive
- is
- isnumber
- isnumeric
- View more
Simple type checker in JavaScript.
- utils
- util
- type checking
- type checker
- type
- checker
- isAlpha
- isAlphanumeric
- isArguments
- isArray
- isBoolean
- isDate
- isDecimal
- isDefined
- View more
locore is a Standard library. the library with basic JavaScript methods to improve development efficiency.
- locore
- lodash
- typescripts
- qianduanka
- type
- isPrimitive
- isNumber
- isString
- isBoolean
- isNull
- isUndefined
- isBigInt
- isSymbol
- isPureObject
- View more
Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.