将整数列表显示为字符串 [英] Display a list of integers as a String

问题描述

我有一个整数列表，例如:

I have a list of integers like:

List<int> list = [1,2,3,4,5];

我想在Text小部件中显示此列表，其结果是: 1,2,3,4,5

I would like to display this list inside a Text widget, having as a result: 1,2,3,4,5

相反，发生的是它向我显示了括号内的数字: (1,2,3,4,5)

What happens instead, is that it shows me the numbers inside the parenthesis: (1,2,3,4,5)

这是我的代码:

final String textToDisplay = list.map((value) {
  String numbers = '';
  return numbers + value.toString() + ',';
}).toString()

，然后在小部件内:

Text(textToDisplay);

推荐答案

这似乎是List.join的完美用法，如下所示:

This seems like a perfect use of List.join, as follows:

  var list = <int>[1, 2, 3, 4, 5];
  var textToDisplay = list.join(',');

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