javascript 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!")
}Checking whether a value exists in an array javascript
const fruits = ['apple', 'banana', 'mango', 'guava'];
function checkAvailability(arr, val) {
return arr.some(arrVal => val === arrVal);
}
checkAvailability(fruits, 'kela'); // false
checkAvailability(fruits, 'banana'); // truecheck if an element is already in an array
private boolean ZitAlInArray(int value, List<Integer> list) {
return array.indexOf(value) > -1;
}
private boolean zitAlInArray(int[] array, int index) {
for (int i = 0; i < index; i++) {
if (array[i] == array[index]) {
return true;
}
}
return false;
}Copyright © 2021 Codeinu
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