typescript regex match code example

Example 1: javascript regex example match

//Declare Reg using slash
let reg = /abc/
//Declare using class, useful for buil a RegExp from a variable
reg = new RegExp('abc')

//Option you must know: i -> Not case sensitive, g -> match all the string
let str = 'Abc abc abc'
str.match(/abc/) //Array(1) ["abc"] match only the first and return
str.match(/abc/g) //Array(2) ["abc","abc"] match all
str.match(/abc/i) //Array(1) ["Abc"] not case sensitive
str.match(/abc/ig) //Array(3) ["Abc","abc","abc"]
//the equivalent with new RegExp is
str.match('abc', 'ig') //Array(3) ["Abc","abc","abc"]

Example 2: js match any number string

const match = 'some/path/123'.match(/\/(\d+)/)
const id = match[1] // '123'

Example 3: how to english paragraph matching in javascript

var text = "If he's restin', I'll wake him up! (Shouts at the cage.) 'Ello, Mister Polly Parrot! (Owner hits the cage.) There, he moved!!!\r\n\r\nNorth Korea is accusing the U.S. government of being behind the making of the movie \"The Interview.\"\r\n\r\nAnd, in a dispatch on state media, the totalitarian regime warns the United States that U.S. \"citadels\" will be attacked, dwarfing the attack on Sony that led to the cancellation of the film's release.\r\n\r\nWhile steadfastly denying involvement in the hack, North Korea accused U.S. President Barack Obama of calling for \"symmetric counteraction.\"\r\n\r\n\"The DPRK has already launched the toughest counteraction. Nothing is more serious miscalculation than guessing that just a single movie production company is the target of this counteraction. Our target is all the citadels of the U.S. imperialists who earned the bitterest grudge of all Koreans,\" a report on state-run KCNA read.";

var splitSentences = function() {

  var pattern = /(.+?([A-Z].)[\.|\?](?:['")\\\s]?)+?\s?)/igm, match;
  var ol = document.getElementById( "result" );
  while( ( match = pattern.exec( text )) != null ) {
    if( match.index === pattern.lastIndex ) {
      pattern.lastIndex++;
    }
    var li = document.createElement( "li" );
    li.appendChild( document.createTextNode( match[0] ) );
    ol.appendChild( li );
    console.log( match[0] );
  }

}();