const found = arrayOfStrings.find(v => str.includes(v));

wordsArray = ['hello', 'to', 'nice', 'day']

yourString = 'Hello. Today is a nice day'.toLowerCase()

result = wordsArray.every(w => yourString.includes(w))

console.log('result:', result)

const colors = ['red', 'green', 'blue'];

const result = colors.includes('red');

​

console.log(result); // true

var arr = ["name", "id"];

  if (arr.indexOf("name") > -1) console.log('yeah');

  else console.log('nah');

function checkInput(input, words) {

 return words.some(word => input.toLowerCase().includes(word.toLowerCase()));

}

​

console.log(checkInput('"Definitely," he said in a matter-of-fact tone.', 

["matter", "definitely"]));

Modern browsers have Array#includes, which does exactly that and is widely supported by everyone except IE:

​

console.log(['joe', 'jane', 'mary'].includes('jane')); //true

Check array contains element

String[] fruits = new String[] { "banana", "guava", "apple", "cheeku" };

​

Arrays.asList(fruits).contains("apple"); // true

Arrays.asList(fruits).indexOf("apple"); // 2

​

Arrays.asList(fruits).contains("lion"); // false

Arrays.asList(fruits).indexOf("lion"); // -1

var extensions = ["image/jpeg","image/png","image/gif"];          

if(extensions.indexOf("myfiletype") === -1){

    alert("Image must be .png, .jpg or .gif");

} 

const nums = [ 1, 3, 5, 7];

console.log(nums.includes(3));

// true

return arrValues.indexOf('Sam') > -1