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Programming-Idioms

  • Erlang
  • Go

Idiom #333 Pretty-print object in JSON

Print the object x in human-friendly JSON format, with newlines and indentation.

import "encoding/json"
import "fmt"
buffer, err := json.MarshalIndent(x, "", "  ")
if err != nil {
	log.Fatal(err)
}
fmt.Println(string(buffer))

Using 2 spaces as indentation
import 'dart:convert';
var encoded = const JsonEncoder.withIndent('  ').convert(x);
print(encoded);
New implementation...
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programming-idioms.org 
buffer, err := json.MarshalIndent(x, "", "  ")
if err != nil {
	log.Fatal(err)
}
fmt.Println(string(buffer))
var encoded = const JsonEncoder.withIndent('  ').convert(x);
print(encoded);

print(json.dumps(x, indent=4))
puts JSON.pretty_generate(x)