principlecsharpCritical
C# loop — break vs. continue
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loopbreakcontinue
Problem
In a C# (feel free to answer for other languages) loop, what's the difference between
Example:
break and continue as a means to leave the structure of the loop, and go to the next iteration?Example:
foreach (DataRow row in myTable.Rows)
{
if (someConditionEvalsToTrue)
{
break; //what's the difference between this and continue ?
//continue;
}
}Solution
break will exit the loop completely, continue will just skip the current iteration.For example:
for (int i = 0; i < 10; i++) {
if (i == 0) {
break;
}
DoSomeThingWith(i);
}The
break will cause the loop to exit on the first iteration —DoSomeThingWith will never be executed.While:
for (int i = 0; i < 10; i++) {
if (i == 0) {
continue;
}
DoSomeThingWith(i);
}Here
continue skips to the next iteration of the for-loop, meaning DoSomeThingWith will not execute for i == 0.But the loop will continue and
DoSomeThingWith will be executed for i == 1 to i == 9.Code Snippets
for (int i = 0; i < 10; i++) {
if (i == 0) {
break;
}
DoSomeThingWith(i);
}for (int i = 0; i < 10; i++) {
if (i == 0) {
continue;
}
DoSomeThingWith(i);
}Context
Stack Overflow Q#6414, score: 1636
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