Regex AND operator

Question

Based on this answer  Regular Expressions  Is there an AND operator   I tried the following on http   regexpal com  but was unable to get it to work  What am missing  Does javascript not support it   Regex     foo    baz   String  foo bar baz

User · Answer

Maybe you are looking for something like this. If you want to select the complete line when it contains both "foo" and "baz" at the same time, this RegEx will comply that:

.*(foo)+.*(baz)+|.*(baz)+.*(foo)+.*

User · Answer

It is impossible for both    foo  and    baz  to match at the same time  It would require the next character to be both f and b simultaneously which is impossible   Perhaps you want this instead        foo      baz    This says that foo must appear anywhere and baz must appear anywhere  not necessarily in that order and possibly overlapping  although overlapping is not possible in this specific case because the letters themselves don t overlap

User · Answer

Maybe just an OR operator   could be enough for your problem   String  foo bar baz  Regex   foo   baz   Result    foo    baz

User · Answer

Example of a Boolean  AND  plus Wildcard search  which I m using inside a javascript Autocomplete plugin   String to match   my word   String to search   I m searching for my funny words inside this text   You need the following regex         my      word     im  Explaining        assert position at start of a line         Positive Lookahead         matches any character  except newline          Groups        assert position at end of a line      i modifier  insensitive  Case insensitive match  ignores case of  a-zA-Z        m modifier  multi-line  Causes   and   to match the begin end of each line  not only begin end of string    Test the Regex here  https   regex101 com r iS5jJ3 1  So  you can create a javascript function that    Replace regex reserved characters to avoid errors Split your string at spaces Encapsulate your words inside regex groups Create a regex pattern Execute the regex match   Example    x000D   x000D  function fullTextCompare myWords  toMatch   x000D        Replace regex reserved characters x000D      myWords myWords replace   -                    g       amp     x000D        Split your string at spaces x000D      arrWords   myWords split       x000D        Encapsulate your words inside regex groups x000D      arrWords   arrWords map function  n     x000D          return          n       x000D          x000D        Create a regex pattern x000D      sRegex   new RegExp     arrWords join            im    x000D        Execute the regex match x000D      return toMatch match sRegex    null false true   x000D    x000D   x000D    Using it  x000D  console log  x000D      fullTextCompare  my word   I m searching for my funny words inside this text   x000D     x000D   x000D    Wildcards  x000D  console log  x000D      fullTextCompare  y wo   I m searching for my funny words inside this text   x000D     x000D   x000D   x000D

[regex] Regex AND operator

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