Sprawdź, czy JavaScript Substring
const string = "javascript";
const substring = "script";
console.log(string.includes(substring)); //true
Batman
const string = "javascript";
const substring = "script";
console.log(string.includes(substring)); //truevar string = "foo",
substring = "oo";
console.log(string.includes(substring));const string = "foo";
const substring = "oo";
console.log(string.includes(substring));s = "Hello world";
console.log(s.includes("world"));var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}
//use indexOf (it returns position of substring or -1 if not found)const s = 'I am going to become a FULL STACK JS Dev with Coderslang';
console.log(s.includes('FULL STACK')); // true
console.log(s.includes('cheeseburger')); // false