Answers for "check if array has index"

PHP
4

php array index exists

// Here's our fruity array
$fruits = ['apple', 'pear', 'banana'];

// Use it in an `if` statement
if (array_key_exists("banana", $fruits)) {
 // Do stuff because `banana` exists
}

// Store it for later use
$exists = array_key_exists("peach", $fruits);

// Return it directly
return array_key_exists("pineapple", $fruits);
Posted by: Guest on March-05-2020
1

check if a element exists in array javascript

const fruits = ["Banana", "Orange", "Apple", "Mango"];
fruits.includes("Mango")   // Returns true
Posted by: Guest on August-04-2021

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