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Start your free trialNir Benita
Courses Plus Student 3,905 PointsJavascript recursion
Hey guys,
I am having a bit of trouble wrapping my head around Recursion in JS.
Could anyone point me to a good resource?
Thanks!
4 Answers
Tim Woodbury
Courses Plus Student 1,534 PointsThere's a section on this in Douglass Crockford's "Javascript: The Good Parts" - recommended reading for all JS developers in my opinion. You might also find this post useful: http://javascript.about.com/library/blrecursive.htm
In practical terms, recursion is the process of breaking an algorithm into a set of trivial operations and allowing the function call stack to substitute for a similar data structure which would otherwise be required by the iterative solution.
Clear as mud?
James Barnett
39,199 PointsAs with most things in life there's a relevant xkcd comic here.
source: http://xkcd.com/244/
Simon Winkler
2,477 Points…
Simon Winkler
2,477 Pointsi think the basic structure of a recursive function call is not that complicated
var x = 0;
function recursiveCall ( ) {
if ( x < 5 ) {
x += 1;
console.log(x);
recursiveCall();
} else {
return;
}
}
recursiveCall();
the key is that a recursive function calls itself, as long as a certain condition is true.
http://jsfiddle.net/simonwinkler/WNXaL/
i am a beginner, so don't rely on this example too much, but you can see how a i count up to five, using a recursive function call.