string contains node js code example
Example 1: javascript string contains
var string = "foo",
substring = "oo";
console.log(string.includes(substring));
Example 2: js string does not contain
"this is the string".indexOf("cake"); // -1 (does not contain)
"this string has cake".indexOf("cake"); // 16 (contains)
Example 3: string contains javascript
const s1 = 'javascript';
const s2 = 'python';
console.log(s1.includes('script')); // true
console.log(s2.includes('script')); // false