Javascript-打破无限循环？

Question

Is it possible to do something like this, and end a seemingly infinite loop once a condition is met? When I attempt it, it crashes my browser as an infinite loop should. Is there another way to do this or is it not possible?

var nL=true;
while(nL){
    if(/* Condition */){
        nL=true;     
        break;
    }
}

Answer 1

If /* Condition */ is ever true then the loop will end - as break will end the loop, irrespective of what nL is set to.

Thus the problem is /* Condition */ is never true.

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Now, as Matt Greer pointed out, if the goal really is to loop infinitely (or to loop a really long time), this must be done in either small batches (such as with setTimeout ) or off the current global context (such as with Web Workers) such that browser will not freeze.

Answer 2

    var nL=true;
    while(nL){
        if(/* Condition */){
            nL=false; // Set to false to exit loop
            break; // Don't need this, if you set nL to false.
        }
    }