I am stucked in something 😅

JavaScript
#1

Umm Guys can anyone tell me why do I need to insert \s and the ignorance case{i} in ohRegex to pass this

Your code so far


let ohStr = "Ohhh no";
let ohRegex = /oh{3,6}no/; // Change this line
let result = ohRegex.test(ohStr);

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36.

Challenge: Specify Upper and Lower Number of Matches

Link to the challenge:

#2

Hi @meetb !

The string has a space so you need to test for that. That is why you need to include the \s.

You also need to include the i flag because you have not chosen to capitalize the O in the beginning.

You will notice if you did capitalize the O here

then you wouldn’t actually need the i flag for this test. It would still pass.
you still need to acknowledge the space though.

Hope that makes sense.

#3 
You will notice if you did capitalize the O here then you wouldn’t actually need the i flag for this test. It would still pass.

why does it so? :thinking:

#4

The i flag ignores casing.

With the i flag, you are telling the computer it doesn’t matter if the O is capitalized or not.

It is just testing for those letters in that order with the space.

But without the i flag, the computer is expected to test for a capital O because you haven’t specified otherwise.

All of these test cases have a capital O. If you want to ignore casing you need to specify that.

Make sense?

2 Likes
#5

Thank you for helping me out Jessica Wilkins :kissing_heart:
Nicely explained :smiley:

1 Like
#6

Jessica, one more question

to match only the letter (a) appearing between 3 and 5 times in the string , your regex would be /a{3,5}h/.

then does \w{3,6} match only letters appearing 3,6 times?? :zipper_mouth_face:

#7

Are you changing the code to this?

o\w{3,6}no

If so, then the \w is the same as [a-zA-Z0-9_]
and it match the previous character 3-6 times.

Just like in the original code where you were testing for the letter ‘h’ 3-6 times.

#8

no no its completely different than that challenge
but its confusing me :confused: :confused:

the main problem is in previous character actually

#9

I guess I was confused by your question because you wrote this.

so i thought you were changing the original code.

Are you confused about the 3-6 times part or the \w part?

#10

ohh!

i am confused about what it actually does I mean I Don’t know :sweat_smile: :pensive: :worried:

#11

Ohh ok.

I think what will help you is to test your regular expressions in a tool like Regex101

It will give you a break down of each component of the regular expression.

I would suggest using that for the rest of the section and the telephone project at the end of the javascript section.

#12

Thank you so much for the suggested tool its nice :+1: :+1:

#13

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