I have for loop that alerts strings from array, I wonder how can I alert them randomly, so it will run gamesNames.length times and display them in different-random order each time (without duplicating them) in JavaScript ?
for (var i = 0; i < gamesNames.length; i++) {
alert (gamesNames[i].Name + gamesNames[i].year );
}
here is a Link http://www.javascriptkit.com/javatutors/arraysort.shtml to the main idea, in Javascript
and here is the Code
...
gamesNames.sort(function() {return 0.5 - Math.random()}) ;
for (var i = 0; i < gamesNames.length; i++) {
alert (gamesNames[i].Name + gamesNames[i].year );
}
...
I hope this helps.
Create an array with items that contain an index and a random number. Shuffle them by sorting on the random number, and use the index to alert the items:
var idx = [];
for (var i = 0; i < gamesNames.length; i++) {
idx.push({ idx: i, rnd: Math.floor(Math.random() * 100000) });
}
idx.sort(function(x,y){ return x.rnd - y.rnd; });
for (var i = 0; i < idx.length; i++) {
var j = idx[i].idx;
alert (gamesNames[j].Name + gamesNames[j].year);
}
You can use a while-loop for this easily, in combination with array.splice:
var array = ["1", "2", "3", "4"];
while(array.length > 0)
{
// Get a random index
var index = Math.floor(Math.random() * array.length);
// Append it to the DOM (or do whatever you want with it)
$("body").append($("<p />").html(array[index]));
// Remove it from the array
array.splice(index, 1);
}
