I have an enum:  var a = {X: 0, Y: 1};   And, I want to create another enum from the values of the first one.  Something like this:  var b = {a.X: "foo", a.Y: "bar"};   Doing this gives me a SyntaxError: Unexpected token .  Is there a...
I am considering using JavaScript object as a dictionary.      var dict = {}     dict['a'] = 1;     dict['b'] = 2;      var my_first = dict['a'];   I am not clear about the time-complexity of such implementation. Is it like ha...
My requirement is to store key-value pairs in a data structure and fetch or delete the pairs when necessary using keys in JavaScript.  How can I do it in JavaScript as one does it in Java?  I have seen an answer creating an instance of hash map like:...
I have String like below.  10=150~Jude|120~John|[email protected]=150~Jude|[email protected]=111~Eminem|2123~Sarah   I need a way to retrieve the string by giving the ID.  E.g.: I give 20; return 150~Jude|440~Niroshan.  I think I need a HashMap to achieve th...
In javascript, I have a hash map of key value pairs like:  "team", "aemt" "meat", "aemt" "car", "acr"   And I want to store all of the matching values with the length of the string like this:  {4, {"...
I have an array named territory which contains the following    i want to create a hashmap where the  key is the id  [id atribute of each object wihin territory]  and the   value is the entire object  any help/pointers on the same?  thankyou...
I have this HashMap in Frontend getting from Backend:   var myVar = {"24":{"amount":2,"minutes":30},"32":{"amount":3,"minutes":30}}   Does anyone know how I can get the keys and the values in Javascript...
I want to declare a hashmap in javascript with <String, String array> instead of <String,Integer>. How can that be done ?...
How do i define updater to get true in newState.c.x === 8 and avoid any mutation in state?  var state = {     a: {x: 1, y: 1},     b: {x: 2, y: 2},     c: {x: 3, y: 3},     d: {x: 4, y: 4}, };  var key = 'c'; var x = 8;  var updater = {     /...
I'm using this method to make artificial 'hashmaps' in javascript. All I am aiming for is key|value pairs, the actual run time is not important. The method below works fine.   Are there any other ways to loop through this?  for (var i in...

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