delete whitespace from the end of string in dart

Question

please I want to know how to delete whitespaces from the end of string in dart . ex :

String name ="(  Sana .  Harun  )";

when I use this code

print(sana.replaceAll(new RegExp(r"\s+\b|\b\s"),""));

it just delete from the beggining and not from the end , and print Like this :(Sana.Harun ) .. there is a space between Harun and ) . I want to delete the space between Harun and )

Can any one help me , please ?

Try adding a + after the \b\s in the RegExp. As written, it only removes one space, not all the spaces after a word break. — lrn
– lrn, Commented Jan 17, 2020 at 6:26

Naveen Avidi · Accepted Answer · 2020-01-17 04:49:28Z

3

Call this function/method !

String getWithoutSpaces(String s){
      String tmp = s.substring(1,s.length-1);
      while(tmp.startsWith(' ')){
       tmp = tmp.substring(1);
      }
      while(tmp.endsWith(' ')){
       tmp = tmp.substring(0,tmp.length-1);
      }

  return '('+tmp+')';
}

answered Jan 17, 2020 at 4:49

Naveen Avidi

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2 Comments

Sana'a Al-ahdal Over a year ago

I used this method @Naveen Avidi .. and it works with me ... Thank you for your help ..... String validate_Strings(String name , String last) { String n =name.replaceAll(new RegExp(r"\s+\b|\b\s"),""); String f= n.replaceAll(" ", ""); String c= last.replaceAll(new RegExp(r"\s+\b|\b\s"),""); String l = c.replaceAll(" ", ""); String u = '('+f+'.'+l+')'; print(u); return u; }

Naveen Avidi Over a year ago

If it's useful and helped you ! Please accept the answer.

Sana'a Al-ahdal · Accepted Answer · 2020-01-16 18:58:46Z

1

I found the solution , is to use this code

print(sana.replaceAll(" ", ""));

so the space between Harun and ) disappear

answered Jan 16, 2020 at 18:58

Sana'a Al-ahdal

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2 Comments

GrahamD Over a year ago

Maybe you should look at stopping the spaces getting there in the first place. I am presuming they are there as a result of user input?

Sana'a Al-ahdal Over a year ago

Yes , that's because the user input ,so ?i want when user enter something , the code delete every space between the letters , but I solved the problem now .. with this code .. String validate_Strings(String name , String last) { String n =name.replaceAll(new RegExp(r"\s+\b|\b\s"),""); String f= n.replaceAll(" ", ""); String c= last.replaceAll(new RegExp(r"\s+\b|\b\s"),""); String l = c.replaceAll(" ", ""); String u = '('+f+'.'+l+')'; print(u); return u; } @GrahamD

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