Looking for help with a for in loop I am using in which returns undefined at the the end.   I have 26 buttons, one button for each letter in the alphabet. I need to scan through the buttons so that when a button is clicked I get the value of that but...
The search function in the following code is not working and I believe it has something to do with the For...In loop but I am new to JS and unsure why:  var friends = { bill: {     firstName: "bill",     lastName: "smith",     number:...
I have an array of objects which will be the basis for a certain menu in my website. It will be build using JavaScript:  [   {"menuName":"Contact Info","sectionName":"contacts"},   {"menuName":"Facilities&#...
Last night, I got really bored and I thought of a little idea for a little script. Basically I was thinking about how many built-in functions PHP has compared to JavaScript and then I realized that I really don't know how many functions JavaScrip...
I need to set the value of every item in this array, counting up.  So, for example, path[0].value = 1, path[1].value = 2 etc...  EDIT: I'm looking for the most efficient way to do this.  I think a for loop is the best way, but I want to learn oth...
So, I'm still reading Apress Pro Javascript Techniques and i'm having troubles with closures.  As John Resig states:     Closures allow you to reference variables that exist within the parent function.   However it does not provide the value...
I'd like to add an "insert" method on Arrays. So I'm doing it like this:  > Array.prototype.insert = function(index, element){     this.splice(index, 0, element); };   And it works:  > a = [1,2,3] [1, 2, 3] > a.insert(0, 4) u...
So I'm a JS newbie and am trying to figure out how to fix my problem. I am trying to loop over an object and return the lowest number.  in my var shortest = ; if I hardcode a number say var shortest = 455; then the problem returns the correct num...

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