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));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 pets = ['cat', 'dog', 'bat'];
console.log(pets.includes('cat'));
// output: truelet fruits = ['mango', 'banana', 'pineapple', 'tomato'];
console.log(fruits.includes('banana')); //Returns True because banana is included it the list
console.log(fruits.includes('orange')); // Returns False, orange is not in the listconst friendsList = ["Abir", "Lalkhan", "Lion", "Shamol", "Kabir", "Shabir"];
if (friendsList.includes("Lion") == true) {
console.log("Lion is Exists");
}
//Output: Lion is Exists'a nice string'.includes('a') //true
'a nice string'.includes('b') //false