CODEWITHSUNDEEP
groovy
monda
monda

Reputation: 3915

Groovy map : get the count of value that a key holds

I have a map,

 def map= [name:[Vin], email:[[email protected]], phone:[9988888888], jobTitle:[SE]]

i want get the total number of values that a key holds

for ex,

key name can have many values like [name:[Vin,Hus,Rock] how to do it programatically?

def count = map.name.size() //gives wrong answer

Upvotes: 0

Views: 7810

Answers (2)

dmahapatro
dmahapatro

Reputation: 50245

def map= [name :['Vin', 'abc', 'xyz'], 
          email:['[email protected]'], 
          phone:[9988888888], 
          jobTitle:['SE']]

//Spread operator to get size of each value
assert map.values()*.size == [3, 1, 1, 1]

//Implicit spread
assert map.values().size == [3, 1, 1, 1]

//use size() to get the size of the values collection
assert map.values().size() == 4

//Values
assert map.values() as List == [['Vin', 'abc', 'xyz'], 
                                ['[email protected]'], [9988888888], ['SE']]

Upvotes: 1

Anuj Aneja
Anuj Aneja

Reputation: 1344

You can use the following code to get a list of size for all key.

def map= [name:['Vin',''], email:['[email protected]'], phone:['9988888888'], jobTitle:['SE']]
map.collect{it.value.size()}

Output:

 [2, 1, 1, 1]

I think map.name.size() should work fine too in groovy.

Upvotes: 2

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