Python MCQ 159 - Walrus Operator, Test Your Skills#pythonprogramming#pythoninterview#shorts#trending

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Python MCQ Questions and answers,
Python MCQ , Python Programming,
Python, python string,
string indexing, string slicing,
string function upper(),
string function capitalize(),
walrus operator, walrus,
assignment expression, named expression,
assignment expression in slicing,
walrus operator in slicing
evaluation of assignment expression,
evaluation of walrus expression,

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💁
📜 *Assignment Expression/Walrus Operator :=*
→ Assigns the value of evaluated expression to perform intended operation and allows to use the value further. 👉 MCQ 155 - 158
🎯When used in slicing 👉 MCQ:61
⇒ *Enclose the expression within ()*
👉 Shorts: *String - Indexing, Slicing - Quick Reference*
*s.upper()* →Returns all chars of string s to upper case
*s.capitalize()* →Returns first char of string s to upper case, remaining to lowecase

💁‍♂️
s→'WelcoME'
🎯 p = s[:(m:=len(s)//2):].upper()
m:=len(s)//2
*Performs 2 operations*
1)⇒assigns the evaluated expression value to m
→len(s)//2→7//2→3⇒m = 3⏰
2)⇒uses the value as stop for slicing⇒s[:3:]
s[:3:]→Slices chars from index 0 to 2⇒'Wel'
'Wel'.upper()→Changes all chars to upper case
⇒p = 'WEL'

🎯q = s[m::].capitalize() 🤔 *m gets value used in p*
→s[3::]→Slices chars from index 3 to end⇒'coME'
'coME'.capitalize()→Changes first char to upper case, remaining to lowecase
⇒q = 'Come'
print(p+q)→concatenates p,q and prints
→'WEL'+'Come'⇒WELCome

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