avoid_double_and_int_checks

Avoid double and int checks.

此规则自 Dart 2.0 版本起可用。

AVOID to check if type is double or int.

When compiled to JS, integer values are represented as floats. That can lead to some unexpected behavior when using either is or is! where the type is either int or double.

BAD:

f(num x) {
  if (x is double) {
    ...
  } else if (x is int) {
    ...
  }
}

GOOD:

f(dynamic x) {
  if (x is num) {
    ...
  } else {
    ...
  }
}

要启用 avoid_double_and_int_checks 规则，请在你的 analysis_options.yaml 文件中，在 linter > rules 下添加 avoid_double_and_int_checks ：

linter:
  rules:
    - avoid_double_and_int_checks

除非另有说明，否则本网站上的文档反映的是 Dart 3.6.0。页面最后更新于 2025-02-05。 查看源代码 或 报告问题.