JavaScript Need to Iterate a NameValuePair in Javascript

[jaisrid81]

I have a name value Pair List object as below :

var nameValuePair = [{'name': 2,'value':'GS'},{'name': 3,'value':'1.1'},{'name': 4,'value':'2.1'},{'name': 4,'value':'2.2'},{'name': 4,'value':'2.3'},{'name': 4,'value':'GS'},];

I need to iterate this list and need the below output as a NameValue Pair list:

var output : [{2,1},{3,1},{4,4}];

Basically I need a list of NameValue Pair where the name is the key and the Value is the count of occurrences of the key in that list.

PS : Needs to be achieved in Javascript

 

[jaisrid81]

I need to achieve this using only For loop, below is the line of code I wrote, but not working.

var nmPair = [{'name': 2,'value':'GS'},
{'name': 3,'value':'1.1'},
{'name': 4,'value':'2.1'},
{'name': 4,'value':'2.2'},
{'name': 4,'value':'2.3'},
{'name': 4,'value':'GS'},
];

var listOfObjects = [];
var cnt = 0;
var idx = 0;

for(var i=0;i<nmPair.length;i++){
var cnt = 0;
for(var j=i;j<nmPair.length;j++){
if(nmPair.name == nmPair[j].name){
cnt = cnt + 1;
if(listOfObjects[idx] == null){
listOfObjects[idx] = [];
}
listOfObjects[idx].push(nmPair.name+"~"+cnt);

} else {
idx++;
break;
}
}
}
console.log(listOfObjects);

 

[jaisrid81]

Actual output :

[
[ '2~1' ],
[ '3~1' ],
[
'4~1', '4~2', '4~3',
'4~4', '4~1', '4~2',
'4~3', '4~1', '4~2',
'4~1'
]
]

Expected Output :

[
{ '2~1' },
{ '3~1' },
{'4~4'}
]