regex

regex.js

/*
Matching a Hex Value – /^#?([a-f0-9]{6}|[a-f0-9]{3})$/
Matching an Email – /^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$/
Matching a URL – /^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/
Matching an HTML Tag – /^<([a-z]+)([^<]+)*(?:>(.*)<\/\1>|\s+\/>)$/
*/

const chkHex = (str) => {
	const regexHex = new RegExp(/^#?([a-f0-9]{6}|[a-f0-9]{3})$/);
	return regexHex.test(str);
};

const chkEmail = (str) => {
	const regexEmail = new RegExp(/^([a-z0-9_\.-]+)@([\da-z\.-]+)\.([a-z\.]{2,6})$/g, 'i');
	return regexEmail.test(str);
};


const chkUrl = (str) => {
	const regexUrl = new RegExp(/^(https?:\/\/)?([\da-z\.-]+)\.([a-z\.]{2,6})([\/\w \.-]*)*\/?$/, 'g');
	return regexUrl.test(str);
};

const chkHTMLTag = (str) => {
	const regexHTMLTag = new RegExp(/^<([a-z]+)([^<]+)*(?:>(.*)<\/\1>|\s+\/>)$/, 'ig');
	return regexHTMLTag.test(str);
};


module.exports = { chkHex, chkEmail, chkUrl, chkHTMLTag };