If I have an array = [8,7,6,5,4] that I want to loop through, why does the following for loop still work yet the length of the array is 5 and there is no element at index 5 of the array?  for(let i=array.length;i>=0;i++){   //do something  }   I k...

I need a bit of help understanding and learning how to control these functions to do what I intend for them to do  So basically I'm coming from a Java background and diving into JavaScript with a "Pong game" project. I have managed to get...

How can I use RxJS to buffer function calls until another async function has resolved?  Here is a simple example of what I'd like to accomplish    function asyncFunc(time) {   setTimeout(() => {       console.log('asyncFunc has resolved...

I need to recurse over a tree to perform operations on specific nodes using async operations.  How can I control flow so I have access to the nodes when it's done?  Here's an example situation:  data = {   name: "deven",   children: [...

I'm used to thinking in Java and I'm trying to get my head around node.js.  My program needs to log information when things go wrong, and I find I'm having to put in a lot of boilerplate code in my node.js program to get what I'd get...

Are there any Call-Graph and/or Control-Flow-Graph generators for JavaScript?  Call Graph - http://en.wikipedia.org/wiki/Call_graph  Control Flow Graph - http://en.wikipedia.org/wiki/Control_flow_graph  EDIT: I am looking specifically for a static t...

One of my friends is teaching a programming class with Javascript and one of his assignments was to create a number guessing game. This was his example implementation:  funProgram: for(;;) {   numberGuesser: {     var num = (Math.random() * 100) | 0;...

I have written a test using selenium IDE (with flow control extensions) that iterates through elements within 2 drop-down lists (using 2 loops) and populates a data entry form according to the elements selected in the drop-down lists.  Esstially the...

I am making a game of tic-tac toe in javascript. I have laid out some of what I believe to be the basic building blocks:  var board = [             0, 0, 0,             0, 0, 0,             0, 0, 0             ]; gameOn = true; player1Move = true; co...

I have a somewhat bigger computation (~0.5sec) in my node app, and I want to make it non-blocking without using a webworker. (I think a webworker would be a little overkill in this situation) Is there a way to force a return to the main loop, in orde...