Have an key value pair like below
var point = [];
point["I1"] = 1000;
point["I2"] = 2000;
point["I3"] = 1000;
point["I4"] = 5000;
point["I5"] = 2000;
point["I6"] = 4000;
want to find the duplicate values, result hash should contain ONLY DUPLICATE value information.
result["1000"] = " I1,I3";
result["2000"] = "I2,I5";
duplicate values should be keys of result hash.
I sort the array, but clueless to traverse hash to check the duplicate values to build the result hash
You can check all values with loop over keys of point.
I changed your terms a little bit. You can set extra keys for Array but you'd better use an Object instead.
The result for each value would be an array which can be converted to comma separated values with just a toString call on each array.
As request is edited, to contain only duplicates You can just loop again (but this time over the hash) and get which has more than one result.
var point = {
I1: 1000,
I2: 2000,
I3: 1000,
I4: 5000,
I5: 2000,
I6: 4000,
};
var hash = Object.create(null);
var result = Object.create(null);
Object.keys(point).forEach(k => {
var grp = point[k];
(grp in hash) ? hash[grp].push(k): (hash[grp] = [k]);
});
for (key in hash)
if (hash[key].length > 1)
result[key] = hash[key].toString();
console.log(hash['1000'].toString());
console.log(hash);
console.log(result);
hash. BTW I've added result.if statement syntax. if there is a key in hash with value of grp then push new value into hash[grp] else set hash[grp] to an array with value of k.to get result["1000"] = "I1,I3" instead of result["1000"] = ['I1','I3']:
var point = {};
point["I1"] = 1000;
point["I2"] = 2000;
point["I3"] = 1000;
point["I4"] = 5000;
point["I5"] = 2000;
point["I6"] = 4000;
var hash = Object.create(null);
Object.keys(point).forEach(k => {
var grp = point[k];
(grp in hash) ? hash[grp] = hash[grp] += ',' + k: (hash[grp] = k);
})
console.log(hash);
