typescript string trimleft code example

Example 1: .includes( string

var str = "Hello world, welcome to the universe.";
var n = str.includes("world");

Example 2: how to build a string javascript es6

var name = "John" ;
var age = 32 ; 

console.log(`My name is ${name}, and I'm ${age} years old.`)
//displays : My name is John, and I'm 32 years old.