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));
function longestString() {
var longest = ' ';
for (var i=0; i < arguments.length; i++) {
if(arguments[i].length > longest.length) {
longest = arguments[i];
}
}
return longest;
}
console.log(longestString("asda", "asdasdasd", "12311","akjsdgkjagsdkjagkjdgkajsgdkjas"));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)var email = "[email protected]";
if(email.includes("@")){
console.log("Email is valid");
}
else{
console.log("Email is not valid");
}
// includes return boolean, if your string found => true else => falsevar string = "foo",
var substring = "oo";
console.log(string.includes(substring));// javascript string contains
var string = "foo",
substring = "oo";
console.log(string.includes(substring));
// javascript string contains
var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}
// javascript string contains
var email = "[email protected]";
if(email.includes("@")){
console.log("Email is valid");
}
else{
console.log("Email is not valid");
}
// javascript string contains
const ParticipantsOfArtExhibition = [
"Jhon",
"Amy",
"Liam"
]
ParticipantsOfArtExhibition.includes("Jhon") //true
ParticipantsOfArtExhibition.includes("Thompson") //false
ParticipantsOfArtExhibition.includes("Amy") //trueconst string = "foo",
const substring = "oo";
console.log(string.includes(substring));