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));
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"));s = "Hello world";
console.log(s.includes("world"));var str = "foobar"
var regex = /foo/g;
if (str.search(regex) !== -1) {
alert("string conains foo!")
}