How to remove leading and trailing white spaces from a given html string

Question

I ve the following HTML string  What would be sample code in JavaScript to remove leading and trailing white spaces from this string    lt p gt  amp nbsp  amp nbsp  lt  p gt   lt div gt  amp nbsp  lt  div gt  Trimming using JavaScript lt br   gt   lt br   gt   lt br   gt   lt br   gt  all leading and trailing white spaces  lt p gt  amp nbsp  amp nbsp  lt  p gt   lt div gt  amp nbsp  lt  div gt

User · Answer

If you re working with a multiline string  like a code file    lt html gt       lt title gt test lt  title gt       lt body gt           lt h1 gt test lt  h1 gt       lt  body gt   lt  html gt    And want to replace all leading lines  to get this result    lt html gt   lt title gt test lt  title gt   lt body gt   lt h1 gt test lt  h1 gt   lt  body gt   lt  html gt    You must add the multiline flag to your regex    and   match line by line   string replace    s   s   gm         Relevant quote from docs      The  m  flag indicates that a multiline input string should be treated as multiple lines  For example  if  m  is used      and     change from matching at only the start or end of the entire string to the start or end of any line within the string

User · Answer

var trim   your string replace    s   s   g

User · Answer

I know this is a very old question but it still doesn t have an accepted answer  I see that you want the following removed  html tags that are  empty  and white spaces based on an html string   I have come up with a solution based on your comment for the output you are looking for   Trimming using JavaScript lt br   gt  lt br   gt  lt br   gt  lt br   gt all leading and trailing white spaces     x000D   x000D  var str     lt p gt  amp nbsp  amp nbsp  lt  p gt  lt div gt  amp nbsp  lt  div gt Trimming using JavaScript lt br   gt  lt br   gt  lt br   gt  lt br   gt all leading and trailing white spaces lt p gt  amp nbsp  amp nbsp  lt  p gt  lt div gt  amp nbsp  lt  div gt    x000D  console log str trim   replace   amp nbsp  g      replace   lt      gt     gt    gt  lt      gt    gt  g        x000D   x000D   x000D     trim   removes leading and trailing whitespace   replace   amp nbsp  g      removes  amp nbsp    replace   lt      gt     gt    gt  lt      gt    gt  g        removes empty tags

User · Answer

var str      my awesome string     str trim          for old browsers  use regex  str   str replace              g       str    my awesome string

User · Answer

See the String method trim   - https   developer mozilla org en JavaScript Reference Global Objects String Trim  var myString      bunch    of  lt br gt  string data with lt p gt trailing lt  p gt  and leading space      myString   myString trim       or myString   String trim myString     Edit  As noted in other comments  it is possible to use the regex approach  The trim method is effectively just an alias for a regex   if  String prototype trim        String prototype trim   function            return this replace    s   s   g                        this will inject the method into the native prototype for those browsers who are still swimming in the shallow end of the pool

User · Answer

01   If you need to remove only leading and trailing white space use this   var address      No 255 Colombo    address replace              g        this will return string  No 255 Colombo   02   If you need to remove all the white space use this   var address      No 255 Colombo    address replace   s g        this will return string  No 255Colombo

User · Answer

string replace    s   s   g

[javascript] How to remove leading and trailing white spaces from a given html string?

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