string not includes javascript code example
Example 1: javascript string includes
'Blue Whale'.includes('blue') // returns false
Example 2: string.contains javascript
var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}
Example 3: js string does not contain
"this is the string".indexOf("cake"); // -1 (does not contain)
"this string has cake".indexOf("cake"); // 16 (contains)