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Kelvin Atawura
Front End Web Development Techdegree Student 19,022 Pointsshuffling displayed treehouse badges using jquery
l am just finished the ajax course and tried doing something with the treehouse api. l ended up with a code like below which works fine and displays the badges and points that l have earned on treehouse.
$(document).ready(function(){
var treehouseAPI = "https://teamtreehouse.com/katawura.json";
$('#badges').html('<h1>Loading....</h1>');
var treehouseOptions = { format: "json" };
function displayBadges(data){
var badgesHTML = "";
badgesHTML += '<h1>points on treehouse' + data.points.total +'</h1>';
badgesHTML += '<ul>';
$.each(data.badges, function(j, badge){
badgesHTML += '<li class="grid-25 tablet-grid-50">';
badgesHTML += '<img src="' + badge.icon_url + '"></a></li>';
});
badgesHTML += '</ul>';
$('#badges').html(badgesHTML);
}
$.getJSON(treehouseAPI,treehouseOptions, displayBadges);
});
But wanted to take it further making the badges to display in a random order. However l seem to be failing. any ideas how l can accomplish this please. the code that l tried is below Andrew Chalkley Dave McFarland
$(document).ready(function(){
var treehouseAPI = "https://teamtreehouse.com/katawura.json";
$('#badges').html('<h1>Loading....</h1>');
var treehouseOptions = { format: "json" };
function displayBadges(data){
var badgesHTML = "";
badgesHTML += '<h1>points on treehouse' + data.points.total +'</h1>';
badgesHTML += '<ul>';
imageOf = data.badges[Math.floor(Math.random()*data.badges.length)];
$.each(imageOf, function(j, badge){
badgesHTML += '<li class="grid-25 tablet-grid-50">';
badgesHTML += '<img src="' + badge.icon_url + '"></a></li>';
});
badgesHTML += '</ul>';
$('#badges').html(badgesHTML);
}
$.getJSON(treehouseAPI,treehouseOptions, displayBadges);
});
1 Answer
Dave McFarland
Treehouse TeacherThe badges property in the returned JSON object is an array. You can use a function to randomize the order of the badges. Here's a compact array shuffle function I found on Stackoverflow:
function shuffle(o){
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
}
I haven't test this code, but I believe you could re-write your code like this to get a randomized list of badges:
$(document).ready(function(){
var treehouseAPI = "https://teamtreehouse.com/katawura.json";
$('#badges').html('<h1>Loading....</h1>');
var treehouseOptions = { format: "json" };
function shuffle(o){
for(var j, x, i = o.length; i; j = Math.floor(Math.random() * i), x = o[--i], o[i] = o[j], o[j] = x);
return o;
}
function displayBadges(data){
var badgesHTML = "";
badgesHTML += '<h1>points on treehouse' + data.points.total +'</h1>';
badgesHTML += '<ul>';
var randBadges = shuffle(data.badges)
$.each(randBadges, function(j, badge){
badgesHTML += '<li class="grid-25 tablet-grid-50">';
badgesHTML += '<img src="' + badge.icon_url + '"></a></li>';
});
badgesHTML += '</ul>';
$('#badges').html(badgesHTML);
}
$.getJSON(treehouseAPI,treehouseOptions, displayBadges);
});
Let us know if it works!
Kelvin Atawura
Front End Web Development Techdegree Student 19,022 PointsKelvin Atawura
Front End Web Development Techdegree Student 19,022 PointsThanks Dave McFarland it works perfectly.