As string is immutable,so we can't change the string so how we can insert a character at middle position?
code:
s = "hello world"
s[5] = '-'
But it gives you error as it is immutable.so,how we can resolve this problem?
1
-
1A quick search will give you your answer - no, strings are not mutable.BruceWayne– BruceWayne2021-10-17 04:28:14 +00:00Commented Oct 17, 2021 at 4:28
Add a comment
|
2 Answers
We know string is immutable,but we can't change values through assignment operator.so we can acheive this through string slicing:
s = s[:5]+'-'+s[6:]
so now s becomes "hello-world". so this can be done using string slicing.
3 Comments
Frank Yellin
But note that
s is now a new string. If s was passed as an argument to a function, the value of s in the function is now hello-world, but the caller still sees the original string hello world
Vennapusa Jaya Chandra Reddy
@FrankYellin Then you should use global keyword inside function
Frank Yellin
That only helps if the caller also named their argument
s and remembers to declare it global.Yes , the strings in the Python are immutable. But we can perform concatenate operation on strings.
If we want to modify string like..
S = "Hello World" S[5] = '-'
It is not possible but we can do this by slicing method
S = S[:5] + '-' + S[6:] Then the result is S = "Hello-World"
Comments
