javascript is in array code example
Example 1: php in array
$colors = array("red", "blue", "green");
if (in_array("red", $colors)) {
echo "found red in array";
}
Example 2: javascript array contains
var colors = ["red", "blue", "green"];
var hasRed = colors.includes("red");
var hasYellow = colors.includes("yellow");
Example 3: javascript element in array
var fruits = ["Banana", "Orange", "Apple", "Mango"];
var n = fruits.includes("Mango");
Example 4: how to check if item is in list js
var myList=["a", "b", "c"];
mylist.includes("d")
Example 5: javascript check if in array
var extensions = ["image/jpeg","image/png","image/gif"];
if(extensions.indexOf("myfiletype") === -1){
alert("Image must be .png, .jpg or .gif");
}
Example 6: see if array contains array javascript
const found = arr1.some(r=> arr2.indexOf(r) >= 0)