Slugify

function slugify(text) {
if (text !== null && text !== undefined) {
return text
.toString()
.toLowerCase()
.replace(/["']/i, '-')
.replace(/\s+/g, '-')
.normalize('NFD')
.replace(/[\u0300-\u036F]/g, '')
}
}

Overflow text

const overflow = (text) => {
let overflow = text.replace(/^(.{80}[^\s]*).*/, '$1')
if (text.length > 80)
overflow = `${overflow}...`
return overflow
}

Git repository

stackoverflow.com/questions/regular-expression-for-git-repository

With URL

Remove http://

let url = 'https://www.google.com'
url = url.replace(/(^\w+:|^)\/\//, '') // www.google.com

Get domain

With URL object

const getHostname = (url) => {
// use URL constructor and return hostname
return new URL(url).hostname
}

With REGEX

const getHostnameFromRegex = (url) => {
// run against regex
const matches = url.match(/^https?\:\/\/([^\/?#]+)(?:[\/?#]|$)/i)
// extract hostname (will be null if no match is found)
return matches && matches[1]
}

Email

From 4 Ways to Validate an Email with JavaScript

function isEmailValid(email) {
const emailRegexp = new RegExp(
/^[a-zA-Z0-9][\-_\.\+\!\#\$\%\&\'\*\/\=\?\^\`\{\|]{0,1}([a-zA-Z0-9][\-_\.\+\!\#\$\%\&\'\*\/\=\?\^\`\{\|]{0,1})*[a-zA-Z0-9]@[a-zA-Z0-9][-\.]{0,1}([a-zA-Z][-\.]{0,1})*[a-zA-Z0-9]\.[a-zA-Z0-9]{1,}([\.\-]{0,1}[a-zA-Z]){0,}[a-zA-Z0-9]{0,}$/i
)
return emailRegexp.test(email)
}
console.log(isEmailValid('helloitsme@herewecode.io')) // true
console.log(isEmailValid('hello-its-me@herewecode.io')) // true
console.log(isEmailValid('hello.its.me@herewecode.io')) // true
console.log(isEmailValid('helloitsme+test@herewecode.io')) // true
console.log(isEmailValid('.helloitsme@herewecode.io')) // false
console.log(isEmailValid('helloitsme.@herewecode.io')) // false
console.log(isEmailValid('@herewecode.io')) // false
console.log(isEmailValid('helloitsmeherewecode.io')) // false
console.log(isEmailValid('helloitsme@herewecode')) // false
console.log(isEmailValid('d@d.o')) // false

Password

/**
* \d => at least one digit
* [a-z] => at least one lower case alpha
* [A-Z] => at least one upper case alpha
* \W => at least one special character
* [a-zA-Z\d\W]{12,} => at least 12 characters with precedent regex
*/
const regex = /^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[\W])[a-zA-Z\d\W]{12,}$/
if (regex.test(password)) {
//
}

Phone

French

/^(0|\+33 )[1-9]([-. ]?[0-9]{2} ){3}([-. ]?[0-9]{2})$/