I'm trying to iterate through an array of elements. jQuery's documentation says:
jquery.Each() documentation
Returning non-false is the same as a continue statement in a for loop, it will skip immediately to the next iteration.
I've tried calling 'return non-false;' and 'non-false;' (sans return) neither of which skip to the next iteration. Instead, they break the loop. What am i missing?
Returning non-false is the same as a continue statement in a for loop, it will skip immediately to the next iteration. I've tried calling 'return non-false;' and 'non-false;' (sans return) neither of which skip to the next iteration. Instead, they break the loop.
each() loop and a $. each() loop at a particular iteration by making the callback function return false . Returning non-false is the same as a continue statement in a for loop; it will skip immediately to the next iteration.
continue labelname; The continue statement (with or without a label reference) can only be used to skip one loop iteration. The break statement, without a label reference, can only be used to jump out of a loop or a switch.
each() loop : Lower performance compare to other loops (for games/animations/large datasets) Less control over iterator (skip items, splice items from list, etc). Dependency on jQuery library unlike for, while etc loops!
What they mean by non-false is:
return true;
So this code:
var arr = ["one", "two", "three", "four", "five"]; $.each(arr, function(i) { if (arr[i] == 'three') { return true; } console.log(arr[i]); });
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
will log one
, two
, four
, five
.
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