I have an array
var a =["color", "radius", "y", "x", "x", "x"];
How to check, that this array does not have the same elements?
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By "not have the same elements", do you mean you want to check if there are no duplicates?bilalq– bilalq2013-11-11 08:08:31 +00:00Commented Nov 11, 2013 at 8:08
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but this has same elements. Try to define your question bit more.Jai– Jai2013-11-11 08:12:23 +00:00Commented Nov 11, 2013 at 8:12
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3 Answers
Try this,
var a = ["color", "radius", "y", "x", "x", "x"];
var uniqueval = a.filter(function (itm, i, a) {// array of unique elements
return i == a.indexOf(itm);
});
if (a.length > uniqueval.length) {
alert("duplicate elements")
}
else{
alert('Unique elements')
}
Comments
If the newArray has elements inside it then you have dublicates. You can then remove the elements of newArray from the original Array.
var a = ["color", "radius", "y", "x", "x", "x"];
var sortA = a.sort();
var newArray = [];
for (var i = 0; i < a.length - 1; i++) {
if (sortA[i + 1] == sortA[i]) {
newArray.push(sortA[i]);
}
}
alert(newArray);
1 Comment
Ricky Stam
If it helped you please accept it as answered or vote it up plz.
This is super simple:
var i, a = ["color", "radius", "y", "x", "x", "x"];
for (i = 0; i < a.length; ++i) {
if(a.indexOf(a[i]) != a.lastIndexOf(a[i]))
alert("Duplicate found!");
}
