Util regular expressions

utilRegex.js

//for positive integers
/^\+?[1-9]\d*$/.test();

//for positive integers and zero
/^\+?(0|[1-9]\d*)$/.test();

//for positive/negative integers and zero
/^\-?(0|[1-9]\d*)$/.test();

//to match specific chars
/[`~!@#$%^&*()_|+\-=÷¿?;:'",.<>\{\}\[\]\\\/]/.test();