The isdecimal( ) Function is used to check if all the letters in the String are numbers or not.
i.e. The String should only consist of numbers (0 to 9) . Any values other than that will not be considered.
x = "6354"
if x.isdecimal():
print("All the letters in the String are numbers")
else:
print("No! Not all the letters in the String are numbers")
In the above code , we have declared a String '6354' that has numbers only.
Function1.png)
So , to check, if all the letters in the String are numbers, we have used 'isdecimal( )' function.
if x.isalpha():
print("All the letters in the String are alphabets")
else:
print("No! Not all the letters in the String are alphabets")
And in this case , all the letters in the String are numbers. So , we got the below output .
Similarly , let us look at the next example .
x = "62.3"
if x.isdecimal():
print("All the letters in the String are numbers")
else:
print("No! Not all the letters in the String are numbers")
In the above code , we have declared a String '62.3' that has a point '.' other than numbers.
Function2.png)
So , to check, if all the letters in the String are numbers, we have used 'isdecimal( )' function.
if x.isdecimal():
print("All the letters in the String are numbers")
else:
print("No! Not all the letters in the String are numbers")
And in this case , there is a point '.' other than numbers. So , we got the below output .