regex tips

regex_tips

// search 2 words multiline
(?=.*\bWORD1\b).*\n*(?=.*\bWORD2\b).*

// exclude word
\b((?!word)\w)+\b

// iterate over matches and do something with group's result
var myString = "something format_abc";
var myRegexp = /(?:^|\s)format_(.*?)(?:\s|$)/g;
match = myRegexp.exec(myString);
while (match != null) {
  // matched text: match[0]
  // match start: match.index
  // capturing group n: match[n]
  console.log(match[0])
  match = myRegexp.exec(myString);
}

// iterate over matches and collect group's result
var matches = []
while (match = myRegex.exec(myStr)) matches.push(match[1])