javascript array contains
var colors = ["red", "blue", "green"];
var hasRed = colors.includes("red"); //true
var hasYellow = colors.includes("yellow"); //falsejavascript array contains
var colors = ["red", "blue", "green"];
var hasRed = colors.includes("red"); //true
var hasYellow = colors.includes("yellow"); //falsejavascript method to see if item exists in array
var fruits = ["Apple", "Banana", "Mango", "Orange", "Papaya"];
// Check if a value exists in the fruits array
if(fruits.indexOf("Mango") !== -1){
alert("Value exists!")
} else{
alert("Value does not exists!")
}javascript is int in array
[1, 2, 3].includes(2); // true
[1, 2, 3].includes(4); // false
[1, 2, 3].includes(1, 2); // false (second parameter is the index position in this array at which to begin searching)javascript includes
const pets = ['cat', 'dog', 'bat'];
console.log(pets.includes('cat'));
// output: truejavascript list include
const array1 = [1, 2, 3];
console.log(array1.includes(2));
// expected output: true
const pets = ['cat', 'dog', 'bat'];
console.log(pets.includes('cat'));
// expected output: true
console.log(pets.includes('at'));
// expected output: falsearray includes
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) // ['hi' 'bye' 'okay]Copyright © 2021 Codeinu
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