Regexlidator

Validate or get the parts of some patterns using regular expressions

I made this package to validate strings using regular expressions, the package contains 4 main objects: is, get, has and search; and every object has this functions:

• email().
• number().
• securePassword().
• color().
• slug().

Instalation

npm i regexlidator

Status

This package is published, but I've never used it in a big project and, besides I tested it with some examples, I don't know the limits in the package, soo... It works fine, but if you detect some bug, please let me know so I can fix it.

Is

The is object validates if a given string IS something (checks the whole string), for instance: "#FFF" is a color, but "Fav: #FFF" isn't besides it contains a color in it, "[email protected] " is an email (besides it has white spaces at the end), but "mail.com" (because it doesn't has the @) and "myemail @gmail.com" isn't an email neither, because there is a space in the middle.

The objective of is to validate a small string, if your objective is validate if a bigger text has (contains) something, maybe you're looking for has.

is.color('#FFF') // true
is.color('Fav: #FFF') // false

is.email('[email protected]    ') // true
is.email('mail.com') // false
is.email('myemail @gmail.com') // false

// Other functions
is.number('12')
is.slug('chocolate-cake')
is.securePassword('Passw0rd')

Has

The has object validates if a text has (contains) something, for instance, besides the sentence "The code of my favorite color is #FF69Bf and I hate 0x111" is obviously not a color, it HAS colors in it.

has.email('Email: [email protected]') // true
has.color('My favorite color is: #Fc0') // true
has.number('I love the number ten') // false, "ten", is not a valid number
has.slug('regexlidator') // true
has.securePassword('password') // false 

Get

The get object is helpful when you want to get some components of a string, it first checks if the string IS something, then returns the match and components of the thing.

get.color('#FF00CC      ').red.asNumber // 255. Matches #FF00CC and can return the red, blue or green components
get.email('   [email protected]   ').domain // 'example.com'. Matches [email protected] and can return the predomain (someone) and domain (example.com)
get.number('123.4').value // 124.4. Matches 123.4 and can return the total value, the integer part or the rest.

// get.slug() and get.securePassword() only can return an object with a property "match" (the other functions also returns a match property) that is basically, the input given once trimed. Or throws an error if the parameter isn't a slug or securePassword

Search

The search object search matches across all the text, and returns an object, where the property matches is an array with all the matches found in the text, the property gets is and array of results of execute the get correspondient function (for example, if you use search.color(), then search.color().gets is an array of the results of using get.color(), so you can get, for example, the red value of the second color like this: search.color().gets[1].red.asNumber); and the property first that is the same as the first element of the gets array (For example if you want to get the value of the first number, use search.number().first.value).

const colors = "#FF0000 #CC0 0x87FFcC"
const gotColors = search.color(colors).gets 

const redValues = gotColors.map(gotColor => gotColor.red.asNumber) // [255, 204, 135]
const averageRed = reds.reduce((prev, current) => prev + current, 0) / reds.length // 198