Such a loop, just like any other, can be stopped with the break directive. To make an 'infinite' loop, usually the while(true) construct is used. for ( ) - The condition is checked before each iteration, additional settings available.do.while - The condition is checked after each iteration.while - The condition is checked before each iteration.The call to a break/continue is only possible from inside the loop, and the label must be somewhere upwards from the directive.

Labels do not allow us to jump into an arbitrary place of code.įor example, it is impossible to do this: break label // jumps to label? No. In this case the execution jumps to the next iteration of the labeled loop. The continue directive can also be used with a label. We can also move the label onto a separate line: outer: So the control goes straight from (*) to alert('Done!'). In the code above break outer looks upwards for the label named outer and breaks out of that loop. if an empty string or canceled, then break out of both loops The while loop has the following syntax: while (condition) )`, '') Loops are a way to repeat the same part of code multiple times. Or just run the same code for each number from 1 to 10. We often have a need to perform similar actions many times in a row.įor example, when we need to output goods from a list one after another.

Do while javascript