How do you locate the first X in a string txt?

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How do you locate the first X in a string txt? 

A) txt.find('X'); 
B) txt.locate('X'); 
C) txt.indexOf('X'); 
D) txt.countTo('X');

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2022-10-19, 16854👍, 5💬

💬 2022-10-01 Ken: The answer is C.

💬 2021-05-22 Shubhamay Hazra: The answer is txt.indexOf('X') because when you want to find something in a string in a particular position, you have to use ind...

💬 2021-03-05 karthik: The content is purely software oriented and the quality of the content is good and it useful to software and some related to sof...

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