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Efficient Array Initialization in Go without Loops
Initialising an array with a uniform value can be done using conventional for loops. However, for large arrays, this approach becomes inefficient. This article explores alternative methods to initialise an array without using loops.
The Traditional Approach
The conventional method involves iterating over the elements of the array using a for loop and setting each element to the desired value.
<code class="go">var A [n]bool for i := 0; i < n; i++ { A[i] = true }</code>
Alternate Approaches
<code class="go">b1 := []bool{true, true, true} b2 := [3]bool{true, true, true}</code>
<code class="go">const T = true b3 := []bool{T, T, T}</code>
<code class="go">presents := []bool{true, true, true, true, true, true} // Is equivalent to: missings := make([]bool, 6) // All false // missings=false means not missing (i.e., present)</code>
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