Explorer
Content
videos
print-multiple-objects.md
dart print-multiple-objects.md
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
# How to Print Multiple Objects to the Console with print() in Dart

If you are coming from JavaScript you may be used to printing multiple objects to the console with `console.log()`:

```dart
console.log('a', 1, 'b', 2); // a 1 b 2
```

In Dart we can only print `Object?` to the console with [`print()`](https://api.dart.dev/stable/3.3.1/dart-core/print.html):

```dart
print(1); // 1
print(null); // null
print({'a': 1, 'b': 2}); // {a: 1, b: 1}
```

But it is totally possible to print multiple objects too, we need to use [Records](https://dart.dev/language/records):

```dart
final number = 1;
final str = 'Hello World';

print((number, str));

print((DateTime.now(), str));

print((DateTime.now(), count: number, description: str));

print((DateTime.now(), StackTrace.current));
```

Print the following:

```markdown
(1, Hello World)
(2024-03-06 15:48:26.514, Hello World)
(2024-03-06 15:48:26.514, count: 1, description: Hello World)
(2024-03-06 15:48:26.514, Error
    at get current [as current] (https://storage.googleapis.com/nnbd_artifacts/3.3.0/dart_sdk.js:139991:30)
    at Object.main$0 [as main] (<anonymous>:52:94)
    at Object.main$ [as main] (<anonymous>:44:10)
    at <anonymous>:89:26
    at Object.execCb (https://dartpad.dev/require.js:5:16727)
    at e.check (https://dartpad.dev/require.js:5:10499)
    at e.<anonymous> (https://dartpad.dev/require.js:5:12915)
    at https://dartpad.dev/require.js:5:1542
    at https://dartpad.dev/require.js:5:13376
    at each (https://dartpad.dev/require.js:5:1020)
    at e.emit (https://dartpad.dev/require.js:5:13344)
    at e.check (https://dartpad.dev/require.js:5:11058)
    at e.enable (https://dartpad.dev/require.js:5:13242)
    at e.init (https://dartpad.dev/require.js:5:9605)
    at a (https://dartpad.dev/require.js:5:8305)
    at Object.completeLoad (https://dartpad.dev/require.js:5:15962)
    at HTMLScriptElement.onScriptLoad (https://dartpad.dev/require.js:5:16882))

```

Demo 
-----