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verify input number or not

Package Exports

  • isnumberic

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (isnumberic) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

Example

var { 
    isNumber, 
    isEven, 
    isOdd
    parseInt,
    parseFloat,
    isPrime,
 } = require("./index");

isNumber(value)

isNumber(10); -> true
isNumber("10");  -> true 
isNumber(""); -> false 
isNumber(undefined); -> false
isNumber(null);  -> false
isNumber("abc");  -> false

isEven(value)

isEven(10);  -> true
isEven(9);  -> false
isEven("a12"); ->  false;
isEven(undefined); ->  false;
isEven(null);  ->  false;

isOdd(value)

isOdd(10);  -> false
isOdd(9);  -> true
isOdd("abc");  ->  false;
isOdd(undefined); ->  false;
isOdd(null);  ->  false;

parseInt(value),

parseInt("10.7"); -> 10
parseInt("1a"); -> throw "Input parameter is not a number!";

parseFloat(value)

parseFloat("10.7"); -> 10.7
parseFloat("a"); ->  throw "Input parameter is not a number!";

isPrime(number)

isPrime(10); -> false
isPrime(7); -> true
isPrime("A"); -> false
isPrime(undefined); -> false