is-check-mahmud

A lightweight utility package for type checking in JavaScript & Node.js

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📌 Features

✔ Check data types (number, string, array, object, null, undefined, etc.)
✔ Check if a value is odd/even
✔ Check if a string is URL, binary, SVG, PNG, JPEG, MP3, MP4, WebP, etc.
✔ Detect file type from a URL or file path
✔ Works in both Node.js & Browser

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📥 Installation

Using npm:

1npm install is-check-mahmud

Using yarn:

1yarn add  is-check-mahmud

📌 Import The package

const isCheck = require("is-check-mahmud");

📌 Check basic data types

console.log(isCheck.isNumber(123));      // true

console.log(check.isInteger(10)); // true
console.log(check.isFloat(10.5)); // true
console.log(check.isNaNValue(NaN)); // true
console.log(check.isFiniteNumber(100)); // true
console.log(check.isFiniteNumber(Infinity)); // false
console.log(check.isInfinity(Infinity)); // true
console.log(check.isInfinity(-Infinity)); // true

console.log(isCheck.isString("Hello"));  // true
console.log(isCheck.isArray([1, 2, 3])); // true
console.log(isCheck.isObject({ key: "value" })); // true
console.log(isCheck.isNull(null));       // true
console.log(isCheck.isUndefined(undefined)); // true

📌 Check even/odd numbers

console.log(isCheck.isEven(10)); // true
console.log(isCheck.isOdd(7));   // true

📌 Check URLS and File types

console.log(isCheck.isURL("https://example.com")); // true
console.log(isCheck.isBinary("1010101"));         // true
console.log(isCheck.isSVG("<svg></svg>"));         // true
console.log(isCheck.isPNG("image.png"));          // true
console.log(isCheck.isJPEG("image.jpeg"));        // true
console.log(isCheck.isMP3("audio.mp3"));          // true
console.log(isCheck.isMP4("video.mp4"));          // true
console.log(isCheck.isWebP("image.webp"));        // true

📌 Check URLS and File types

console.log(isCheck.getFileType("https://example.com/image.png")); // "png"
console.log(isCheck.getFileType("C:/Users/user/music.mp3")); // "mp3"

API Methods

Method	Description	Example Usage
isNumber(value)	Check if the value is a number	isCheck.isNumber(123) // true
isInteger(value)	Check if the value is a integer	isCheck.isInteger(123) // true
isFloat(value)	Check if the value is a floating point number	isCheck.isFloat(10.5) // true
isNaNValue(value)	Check if the value is a NaN	isCheck.isNaNValue(NaN) // true
isFiniteNumber(value)	Check if the value is a Infinite number	isCheck.isFiniteNumber(100) // true
isInfinity(value)	Check if the value is a Infinity or -Infinity	isCheck.isInfinity(Infinity) // true
isString(value)	Check if the value is a string	isCheck.isString("Hello") // true
isArray(value)	Check if the value is an array	isCheck.isArray([1, 2, 3]) // true
isObject(value)	Check if the value is an object	isCheck.isObject({key: "value"}) // true
isNull(value)	Check if the value is null	isCheck.isNull(null) // true
isUndefined(value)	Check if the value is undefined	isCheck.isUndefined(undefined) // true
isEven(number)	Check if the number is even	isCheck.isEven(10) // true
isOdd(number)	Check if the number is odd	isCheck.isOdd(7) // true
isURL(value)	Check if the value is a valid URL	isCheck.isURL("https://example.com") // true
isBinary(value)	Check if the value is binary	isCheck.isBinary("1010101") // true
isSVG(value)	Check if the value is an SVG	isCheck.isSVG("<svg></svg>") // true
isPNG(value)	Check if the value is a PNG image	isCheck.isPNG("image.png") // true
isJPEG(value)	Check if the value is a JPEG image	isCheck.isJPEG("image.jpeg") // true
isMP3(value)	Check if the value is an MP3 file	isCheck.isMP3("audio.mp3") // true
isMP4(value)	Check if the value is an MP4 video	isCheck.isMP4("video.mp4") // true
isWebP(value)	Check if the value is a WebP image	isCheck.isWebP("image.webp") // true
getFileType(value)	Get file type from URL or file path	isCheck.getFileType("https://example.com/image.png") // "png"