Common Operations¶
There are some functions which can be applied on all collections. Here we will see details related to tuple and dict using Python as programming language.* in – check if element exists in the tuple
incan also be used ondict. It checks if the key exists in thedict.len– to get the number of elements.sorted– to sort the data (original collection will be untouched). Typically, we assign the result of sorting to a new collection.sum,min,max, etc – arithmetic operations. In case ofdict, the operations will be performed on key.- There can be more such functions.
In [1]:
t = (1, 2, 3, 4) # tuple
In [2]:
1 in t
Out[2]:
True
In [3]:
5 in t
Out[3]:
False
In [4]:
len(t)
Out[4]:
4
In [5]:
sorted(t, reverse=True)
Out[5]:
[4, 3, 2, 1]
In [6]:
sum(t)
Out[6]:
10
In [7]:
d = {1: 'a', 2: 'b', 3: 'c', 4: 'd'} # dict
In [8]:
1 in d
Out[8]:
True
In [9]:
5 in d
Out[9]:
False
In [10]:
'a' in d
Out[10]:
False
In [11]:
len(d)
Out[11]:
4
In [12]:
sorted(d) # only sorts the keys
Out[12]:
[1, 2, 3, 4]
In [13]:
sum(d) # applies only on keys
Out[13]:
10