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/Dart 2

checkNotNull method

  1. @Since("2.1")
void checkNotNull (Object argument, [ String name ])
@Since("2.1")

Throws if argument is null.

Implementation

@Since("2.1")
static void checkNotNull(Object argument, [String name]) {
  if (argument == null) throw ArgumentError.notNull(name);
}

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Licensed under the Creative Commons Attribution-ShareAlike License v4.0.
https://api.dart.dev/stable/2.5.0/dart-core/ArgumentError/checkNotNull.html