CODEWITHSUNDEEP
javascript
user3972104
user3972104

Reputation:

create dictonary with array as value in key value pair : java Script

Am trying to achieve something like the following :

  Key                      value

fruit               apple,orange,banana,grapes
cooldrinks          pepsi,cococola,miranda
snaks               lays,kurkure

for that i use the code as:

<script>
var vars = [{key:"key", value:"val1",value:"val2",value:"val3",value:"val4"}];
vars[0].key = "fruit";
vars[0].val1 = "apple";
vars[0].val2 = "orange";
vars[0].val3 = "banana";
vars[0].val4 = "grapes";
</script>

But it is not possible for large dictionaries how can i implement such dictionaries with huge content? can anyone suggest me a simplest method?

In the case of dynamic array what should i need to change in my code?

Upvotes: 0

Views: 107

Answers (4)

Abdul Jabbar
Abdul Jabbar

Reputation: 2573

You should first of all create this key/values object:

function Pairs() {
    this.key= "",
    this.values= new Array()
}

this object will hold your key and values for all the things.

Next up you need to create a dictionary array to hold all the Pairs:

var dictionary = new Array();

then, create your objects, fill them up with data and add them to dictionary:

var fruit = new Pairs();
fruit.key = "fruit";
fruit.values[0] = "banana";
fruit.values[1] = "Orange";
fruit.values[2] = "Apple";
dictionary.push(fruit);  //adding fruit to dictionary

var car = new Pairs();
car.key = "car";
car.values[0] = "Honda";
car.values[1] = "Toyota";
car.values[2] = "Ferrari";
dictionary.push(car);   //adding car to dicitonary

once dictionary is populated, you can access the objects like:

dictionary.length; //get the length of all the objects present in dictionary
dictionary[0].key; //get the key of a particular object

See the DEMO here

Upvotes: 0

jasonscript
jasonscript

Reputation: 6170

You can use js objects to do this

var dictionary = [
  { fruit: ['apple', 'orange', 'banana', 'grapes'] },
  { cooldrinks: ['pepsi', 'cocacola', 'miranda'] },
  { snacks: ['lays', 'kurkure'] }
];

You can then access them like this

dictionary.fruit;     // returns apple, orange, banana, grapes
dictionary.snacks[0]; // returns lays

You can even use [] notation

dictionary["fruit"][0];// returns apple

Upvotes: 0

elclanrs
elclanrs

Reputation: 94101

How about:

var data = [
  {fruit: ['apple','orange','banana','grapes']},
  {cooldrinks: ['pepsi','cocacola','miranda']},
  {snacks: ['lays','kurkure']}
]

Upvotes: 1

Mat&#237;as Fidemraizer
Mat&#237;as Fidemraizer

Reputation: 64923

Why you use an array for this? Use an object instead:

var dictionary = {
   key1: ["value1", "value2"],
   key2: ["value3", "value4"]
};

If you want to obtain all keys, you may use Object.keys:

var allKeys = Object.keys(dictionary);

Also, you can access a key using dot syntax or indexed syntax:

var key1value = dictionary.key1;
key1value = dictionary["key1"];

Upvotes: 0

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