check if string contains a substring in javascript 3f

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Miguel Ángel
19 Aug 2018
1const string = "javascript";
2const substring = "script";
3
4console.log(string.includes(substring));  //true
Abigail
19 Aug 2019
1var str = "We got a poop cleanup on isle 4.";
2if(str.indexOf("poop") !== -1){
3	alert("Not again");
4}
5//use indexOf (it returns position of substring or -1 if not found)
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