is-check-mahmud

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

📌 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

📥 Installation

Using npm:

npm install checking-values

Using yarn:

yarn add  checking-values

📌 Import The package

const isCheck = require("checking-values");

📌 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" |