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Lecture 33: Python has Built-in Function and Methods
Nafees AI Lab
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5/16/2025
Built-in functions instruct the program to perform specific tasks. Built-in functions can only perform simple tasks. Built-in functions include functions like abs(), sort(), and len().
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जो आप element हमें दे रहे हैं यह 11th location के उपर पढ़ा हुआ है
04:27
इसी तरह एक और interesting method exist करता है
04:31
जो के basically आप replace कर सकते हैं
04:33
अब ज़र आपने गोर करना है
04:34
last lecture में मैंने आपको समझाया था immutability का concept
04:38
ठीक है तो अब ज़र आपने गोर करना है कि क्या
04:41
मैं वो law break कर रहा हूँ immutability का
04:43
मिसाल के तोर पर मैं इस string function को उपर call करता हूँ replace
04:47
और replace के अंदर मैं इसको देता हूँ यार बास सुनो
04:50
replace करना है basically g और किस से replace करना है
04:54
let's say
04:58
इस तरह करते हैं कि इस पूरे के पूरे sentence इस पूरे के पूरे word को
05:04
मैं कहता हूँ never give को replace कर दो with get
05:07
ठीक है अब जर आपने गोर करना है मैं इसको print करता हूँ
05:11
and you will see
05:13
अब जर आप बताइए कि क्या ये replace हो जाएगा
05:16
मैं इसको run करता हूँ
05:18
and voila यह कहता never get up
05:21
very strange
05:23
हुआ क्या basically
05:25
कि ये तो मैंने फिर किसी index को replace कर दिया
05:29
तो last lecture में तो मैंने कहा था कि ये replace नहीं हो सकता है
05:33
ये immutable है
05:34
interesting तो चलिए एक test run करते है
05:37
और वो test ये है कि अगर मैं कहता हूँ
05:39
चलो देखता हूँ मैं यार original string मेरी
05:41
क्या उसकी क्या हालत है क्या की change हुई है
05:43
मैं जो ही इसको run करता हूँ
05:45
वाउ
05:47
original string is the same
05:49
original string में कोई तबदीली नहीं आई
05:52
तो इसका मतलब ये है
05:53
कि behind the screen
05:55
क्या हुआ
05:56
कि python ने एक नई string create की
06:00
इसकी copy
06:00
इसकी copy create की उसके अंदर change की
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और वो आपको return कर दी
06:05
यहाँ पर original में उसने कोई तबदीली
06:07
नहीं की उसकी reason ये है कि strings जहा है
06:09
वो immutable है
06:10
ठीक है
06:11
now it makes sense
06:12
excellent
06:13
okay then
06:15
let's close this lecture here
06:17
और मैं आपको website एक दवा दिखा देता हूँ
06:19
ये है जी
06:20
w3 school
06:21
ठीक है
06:22
तो आप यहाँ पर आ सकते हैं
06:23
और built-in methods जो
06:25
basically python के उपर
06:26
call हो सकते हैं
06:27
string methods
06:28
you can check them out
Recommended
4:44
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