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>
Initialization with Curly Braces
<code class="go">myMap = map[string]int{}</code>
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>
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.
The above is the detailed content of 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. For more information, please follow other related articles on the PHP Chinese website!