JS utils

This is a collection of JavaScript snippets.

camelCase

This snippet converts a string to its camelCase notation.
For example, This is not camel case, but it will will return thisIsNotCamelCaseButItWill

PascalCase

This snippet converts a string to its PascalCase notation.
For example, This is not pascal case, but it will will return ThisIsNotPascalCaseButItWill

kebab-case

This snippet converts a string to its kebab-case notation.
For example, This is not kebab case, but it will will return this-is-not-kebab-case-but-it-will

Capitalize

This snippet capitalizes a string.
For example, toti muñoz will return Toti Muñoz

Create fake email

This snippet uses puppeteer to create fake emails. You don't have to provide any parameter.

Filter from object

This snippet filters objects of an array that matches every field of a given query object.
For example, if you want to look for people whose last name is Smith and also are 22 years old, you could use filterFromObject(peopleArray, { last: "Smith", age: 22 }) and get an array of them.

Format nested object

This snippet executes a given callback for every element of an object, no matter how nested it is. For example, let's say that you have an object full of numbers (some of them are deeply nested) and you want to fix them all to two decimals, running formatNestedObject(object, (number) => number.toFixed(2)) will do it for you.

Join names

This snippet joins names' array based on its length.
For example,

• ["Toti"] will return Toti
• ["Toti", "John"] will return Toti and John
• ["Toti", "John", "Mike"] will return Toti, John and Mike

Time options

This snippet will return an array with every time option for a given interval in minutes. This can be useful for dropdowns options.
For example, getTimeOptions(45) will return ['00:00', '00:45', '01:30', '02:15', '03:00', '03:45', '04:30', '05:15','06:00', '06:45', '07:30', '08:15', '09:00', '09:45', '10:30', '11:15', '12:00', '12:45', '13:30', '14:15', '15:00', '15:45', '16:30', '17:15', '18:00', '18:45', '19:30', '20:15', '21:00', '21:45', '22:30', '23:15']

Unique values

This snippet will return an array without repeating its values.
For example, [1, 2, 2, 1, 3] will return [1, 2, 3]

Hide email

This snippet will hide the half of the email.
For example, testemail@gmail.com will return test*****@gmail.com

Hash string

This snippet will hash a string using a given hashing algorithm (sha512 by default). This is useful for storing sensitive data securely. For example, 123456 will return ba3253876aed6bc22d4a6ff...

Hours diff

This snippet will return the hours difference between two Dates objects. For example, getting the diff from 2022-03-27 to 2022-03-30 will return 72.

Dates utils

This group of snippets will return the date and time in a more human friendly format. For example, running getDateAndTime(new Date()) will return Today at hh:mm. If ran with a date from the previous day, it will return Yesterday at hh:mm. In any other case, it will return dd/mm/yyyy at hh:mm.

Custom timer

This utils class is a wrapper around setInterval and setTimeout. It allows you to start a timer, pause it, resume it, and stop it.