Remove duplicated values in JSON using loop

Question

Take look at:

data = [{
  city: 'Mushroom Kingdom',
}, {
  city: 'Mushroom Kingdom',
}, {
  city: 'Mushroom Kingdom',
}, {
  city: 'Mushroom Kingdom',
}, {
  city: 'Mushroom Kingdom',
}, {
  city: 'Mushroom Kingdom',
}, {
  city: 'Planet Zebes',
}, {
  city: 'Planet Zebes',
}, {
  city: 'Planet Zebes',
}];


for(var i = 0; i < data.length; i++) {
    var obj = data[i];

   $(".test").append(obj.city + "<br>")
}

It's simple problem, I couldn't figure out how to remove duplicated values before to render this list.

gurvinder372 · Accepted Answer · 2016-01-11 18:40:42Z

2

change last for loop from

for(var i = 0; i < data.length; i++) {
    var obj = data[i];

   $(".test").append(obj.city + "<br>")
}

to

var allCities = {};
for(var i = 0; i < data.length; i++) {
    allCities[ data[i].city ] = "";
}
$(".test").append(Object.keys( allCities ).join("<br>"));

check this updated fiddle

edited Jan 11, 2016 at 18:40

answered Jan 11, 2016 at 18:35

gurvinder372

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