includes() in javascript code example
Example 1: javascript contains substring
var str = "We got a poop cleanup on isle 4.";
if(str.indexOf("poop") !== -1){
alert("Not again");
}
Example 2: javascript includes
const pets = ['cat', 'dog', 'bat'];
console.log(pets.includes('cat'));
Example 3: includes in javascript
var colors = ['yellow', 'red', 'pink'];
var string = 'yellow and red are pretty cool';
console.log(colors.include('blue');
console.log(string.includes('yellow');
Example 4: .includes javascript
let storyWords = ['extremely literally actually hi bye okay']
let unnecessaryWords = ['extremely', 'literally', 'actually' ];
let betterWords = storyWords.filter(function(word) {
return !unnecessaryWords.includes(word);
});
console.log(betterWords)
Example 5: javascript includes method
arr.includes(searchElement[, fromIndex = 0])