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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Review while loops, do...while loops, and Loop Conditions

Posted by Gena Israel
Gena Israel
2,047 Points

can someone explain why this would print hello good bye do {

Given the code below, what will print out to the console?

do { console.log('Hello'); } while (false) console.log('Goodbye');

1 Answer

Steven Parker
Steven Parker
229,732 Points
Steven Parker
Steven Parker
229,732 Points

Even though the condition is false, a do...while loop always runs at least once.

So "Hello" is printed on the first pass, and then the false condition causes the loop to end.

After the loop has finished, the last line prints "Goodbye".