js dictionary keys code example

Example 1: get keys of dictionary js

// Get keys of a dictionary
let dict = { a:1 , b:2 , c:3 }

console.log( Object.keys(dict) ) // expected output : ['a', 'b', 'c']

Example 2: dictionary in javascript

// Dictionaries are placed in braces, and values are seperated with a comma
let myDictionary = {
	"value 1": "string",
  	"value 2": 2,
	"value 3": ["array value 1", "array value 2"]
};

// Access the dictionary using its keys
var value1 = myDictionary["value1"]; // Type: String
var value2 = myDictionary["value2"]; // Type: Int
var value3 = myDictionary["value3"]; // Type: Array

Example 3: get all keys of object in javascript

myObject = {
	"key": "value",
    "key2":"value2"
}
Object.keys(myObject);
//console.log(Object.keys(myObject))   = ["key", "key2"]

Example 4: js dictionary

var dict = {
  FirstName: "Chris",
  "one": 1,
  1: "some value"
};