prefer_ foreach
Use 'forEach' and a tear-off rather than a 'for' loop to apply a function to every element.
Description
#
The analyzer produces this diagnostic when a
for
loop is used to operate
on every member of a collection and the method
forEach
could be used
instead.
Example
#
The following code produces this diagnostic because a
for
loop is being
used to invoke a single function for each key in
m
:
void f(Map<String, int> m) {
for (final key in m.keys) {
print(key);
}
}
Common fixes
#Replace the for loop with an invocation of forEach
:
void f(Map<String, int> m) {
m.keys.forEach(print);
}
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