# All

The All method is useful when you need to verify that all elements in a list satisfy a particular boolean condition. If they all meet the specified condition the All method will return true, otherwise, it will return false.

# Basic example

Here we use All operator to ensure that all the numbers in the array are positive.

Live example: https://dotnetfiddle.net/kofvbq

var scores = new[] { 87, 56, 33, 20, 11 };

var all = scores.All(i => i > 0); // check if all values are greater than zero

// output: true