How to compare string and ignore white space and cases?

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1

Exmple Input :

var a = Mark N Lautz
var b = Mark N                                  Lautz

It should return true since the same string the only difference it white spaces. Thanks.

2

Hi @AhmedKutraphali

if(a.replaceAll(“\s+”,“”).equalsIgnoreCase(b.replaceAll(“\s+”,“”)))

3 Likes
4

@AhmedKutraphali,

You can use = operator to compare string,

if a = b {
// do your work
}

5

Hi,

Can you try the following condition?

System.Text.RegularExpressions.Regex.Replace(a,"\s+"," ").ToLower=System.Text.RegularExpressions.Regex.Replace(b,"\s+"," ").ToLower

Regards,

1 Like
6

str = str.replace(chr(160),“”)

7

U can use contains operation

b.Contains(a)

1 Like
8

the output should be true , but the regex gives false @Yoichi

9

.contains does not ignored the white spaces

10

Hi,

In my environment, it works. Is there any difference with your input string in the following sample?

Sequence4.xaml (5.5 KB)

Regards,

11

@Yoichi , here is the sample difference between 2 strings when I log it

image

12

Hi,

Thank you for sharing. However, i cannot reproduce it’s false using the regex.
Can you share them as a text file?

Regards,

13

is there a way to remove all the spaces ? so the comparison would be

var a = MarkNLautz
var b = MarkNLautz

14

Hi

is there a way to remove all the spaces ?

It’ll be the following.

System.Text.RegularExpressions.Regex.Replace(a,"\s+","").ToLower=System.Text.RegularExpressions.Regex.Replace(b,"\s+","").ToLower

If you want to delete all white space, the following will work.

newA = System.Text.RegularExpressions.Regex.Replace(a,"\s+","")

(We can check it using LogMessage and/or MessageBox etc)

Regards,

1 Like
15

I dont really understand why it returned false

1 Like
16

based on the screenshot above that is just the 2 strings I am comparing

17

Hi,

We need exact String to investigate the cause. So can you try to write content of variables to text file as the following and share them?

img20210524-3

Regards,

18

@Yoichi

image
image873Ă—184 13.1 KB

image
image855Ă—176 14.2 KB

19

Hi,

Can you upload the text files to this topic?

Regards,

20

Thanks @Yoichi , I was able to fix it now hehe

1 Like
21

For an alternative VB.NET solution that doesn’t use regex:

If String.Equals(a.Replace(" ", ""), b.Replace(" ", ""), StringComparison.InvariantCultureIgnoreCase) Then
    Console.WriteLine("It's a match")
End If
3 Likes