Ciąg JavaScript zawiera
var string = "foo",
substring = "oo";
console.log(string.includes(substring));
Cautious Crane
var string = "foo",
substring = "oo";
console.log(string.includes(substring));const string = "foo";
const substring = "oo";
console.log(string.includes(substring));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)'Bandeira do Brasil'.includes('brasil'); // returns false
'Bandeira do Brasil'.includes('Brasil'); // returns trueconst ParticipantsOfArtExhibition = [
"Jhon",
"Amy",
"Liam"
]
ParticipantsOfArtExhibition.includes("Jhon") //true
ParticipantsOfArtExhibition.includes("Thompson") //false
ParticipantsOfArtExhibition.includes("Amy") //truevar string = "foo";
var substring = "oo";
console.log(string.indexOf(substring) !== -1);