Variables

Arrays in Go

Arrays are used to store multiple sequenced values in one variable.


Syntax
var arrayName [arrayLength]dataType
//arrays are initialized with 0 values
arrayName[index] = value

//to initialize in one line
var initArrayName [arrayLength]dataType {element1, element2, ...}

Notes

Arrays are zero-indexed, which means the first element is 0 and the last element is the array length - 1.

The length of an array cannot be changed. For dynamic sizing, look at slices.

The length or size of an array can be obtained using the len(arrayName) function.


Example
var array [2]int; //declaring an array of size 2 
array[0] = 1; //storing a value of 1 in the first element
array[1] = 2; //storing a value of 2 in the second element

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