When I detect keys being pressed with JavaScript in Mozilla Firefox 22, I am unable to detect any more than 3 keys being pressed when using document.onkeydown and document.onkeyup, setting each key to either true or false. My code is:  document.onkey...
I have an array of objects and I want to get the max prevalence value.  I try this code:    // max of selected vaccine var ex = [{"name": "a", "prevalence": "NaN"}, 	{"name": "a", "prevalence":...
Lets suppose I have object like this:  var obj = {a : 5, b : 10, c : 15, d : 20, e : 20, f : 25};   I would like to get top 3 highest values - notice that d and e key have the same value and I need to get the keys also, so it would looks like:     Hi...
I am trying to find the maximum number within each of four subarrays, push each max to a new array that includes all four maxes and return that array. When I run this code it returns an array with four values, but they are all null. What am I doing w...
I would like to get max values from subarrays in array1 array.  var array1 = [[4, 2, 7, 1], [20, 70, 40, 90], [1, 2, 0]];  let one = array1.slice(0,1); let two = array1.slice(1,2); let three = array1.slice(2,3);  console.log(one);  console.log(two);...
What can the maximum size of a JavaScript file in a website, built for mobile be? Mine was 80kb. Now I've reduced it to 43kb. Should I still have to reduce its size? What can happen if its going to be a large file?  Thank you in advance....
I'm trying to find the largest and smallest value in an group of items with same attributes. For example from the screenshot, the max value for crop: 18157 would be 1.77 and the smallest 1.68  JsFiddle: https://jsfiddle.net/kf3qhsge/  var myCrops...
I try to make a little game but if I start it it says : Uncaught RangeError: Maximum call stack size exceeded"  What's wrong with my code? ;-)  function move(top,left){     y_ball = $('#ball').offset().top - $('#spielfeld').of...
so i have a piece of code which displays medals (img's) in a list, my aim is that once 5 li's have shown, to cut off any more thereafter. ( And also if possible display three ellipsis ... to redirect a user to where they can see all of these...

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