check if an array contains string javascript code example
Example 1: find string in array javascript
var myarr = ["I", "like", "turtles"];
var arraycontainsturtles = (myarr.indexOf("turtles") > -1);
Example 2: see if array contains array javascript
const found = arr1.some(r=> arr2.indexOf(r) >= 0)
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"]));