C# extend array

59

use length to resize an array - 

let array = [11, 12, 13, 14, 15];  
console.log(array.length); // 5  

array.length = 3;  
console.log(array.length); // 3  
console.log(array); // [11,12,13]

array.length = 0;  
console.log(array.length); // 0  
console.log(array); // []

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