javascript contains 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)javascript contains 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)how to check if a string is in a string js
// Example 1:
const string = "Hello world!";
n = string.includes("world");
// n is equal to true in Example 1
// Example 2:
const string = "Hello world!, I am Kavyansh";
n = string.includes("I am Aman");
// n is equal to false in Example 2
// Note: the .includes method is case sensitivejs check if string contains character
"FooBar".includes("oo"); // true
"FooBar".includes("foo"); // false
"FooBar".includes("oo", 2); // falseCopyright © 2021 Codeinu
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