check if array includes string javascript code example
Example 1: javascript array contains
var colors = ["red", "blue", "green"];
var hasRed = colors.includes("red");
var hasYellow = colors.includes("yellow");
Example 2: javascript array contains
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var n = fruits.includes("Mango");
Example 3: check if array does not contain string js
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"]));
Example 4: check if array does not contain string js
function checkInput(input, words) {
return words.some(word => new RegExp(word, "i").test(input));
}
console.log(checkInput('"Definitely," he said in a matter-of-fact tone.',
["matter", "definitely"]));