Here are a few question-based article titles that fit your article: * Go Map Initialization: Is `make` or Curly Braces Faster? * Map Performance Showdown: `make` vs. Curly Braces in Golang * Which W

Susan Sarandon
Release: 2024-10-28 00:05:29
Original
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Here are a few question-based article titles that fit your article:

* Go Map Initialization: Is `make` or Curly Braces Faster? 
* Map Performance Showdown: `make` vs. Curly Braces in Golang
* Which Way to Initialize Maps in Go? A Benchmark of `make` and

Performance Comparison of Map Initialization Methods in Go

When initializing maps in Golang, there are two common approaches: using make or curly braces {}. This article examines any potential performance differences between these methods.

Initialization with make

<code class="go">myMap = make(map[string]int)</code>
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Initialization with Curly Braces

<code class="go">myMap = map[string]int{}</code>
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Performance Benchmarks

A benchmark was conducted to compare the performance of these two methods. The following code was used:

<code class="go">package bench

import "testing"

var result map[string]int

func BenchmarkMakeLiteral(b *testing.B) {
        var m map[string]int
        for n := 0; n < b.N; n++ {
                m = InitMapLiteral()
        }
        result = m
}

func BenchmarkMakeMake(b *testing.B) {
        var m map[string]int
        for n := 0; n < b.N; n++ {
                m = InitMapMake()
        }
        result = m
}

func InitMapLiteral() map[string]int {
        return map[string]int{}
}

func InitMapMake() map[string]int {
        return make(map[string]int)
}</code>
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Benchmark Results

Multiple benchmark runs yielded negligible performance differences between the two initialization methods. The results are close enough to be considered equivalent.

Conclusion

Based on the benchmark results, there is no significant performance difference between initializing maps using make or curly braces in Go. The choice between the two methods is a matter of personal preference or specific use case requirements.

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