#include <StringConstants.au3> ; to declare the Constants of StringRegExp
#include <Array.au3> ; UDF needed for _ArrayDisplay and _ArrayConcatenate
Local $sRegex = "(?m)(?-i)^[\t ]*((?:[!(]|\w+\(|(?:(?:const|let|var)[\t ]+)?[\w$]+[\t ]*[:=][\t ]*(?:{\w+[\t ]*:[\t ]*)?)?)((?:\([^\r\n)]*\)|\w)[\t ]*=>)"
Local $sString = "!function(){}(); // test1" & @CRLF & _
"!function test2(){}(); // test2" & @CRLF & _
"(function(){})(); // test3" & @CRLF & _
"(function test4(){})(); // test4" & @CRLF & _
"test5 = function(){} // test5" & @CRLF & _
"test6 = function _test6(){} // test6" & @CRLF & _
"let test7 = function(){} // test7" & @CRLF & _
"let test8 = function _test8(){} // test8" & @CRLF & _
"var test9 = function(){} // test8" & @CRLF & _
"var test10 = function _test10(){} // test10" & @CRLF & _
"const test11 = function(){} // test11" & @CRLF & _
"const test12 = function _test12(){} // test12" & @CRLF & _
"myfunc(function(){}) // test13" & @CRLF & _
"myfunc(function test14(){}) // test14" & @CRLF & _
"let myobj15 = {test15 : function(){}} // test15" & @CRLF & _
"let myobj16 = {test16 : function _test16(){}} // test16" & @CRLF & _
"var myobj17 = {test17 : function(){}} // test17" & @CRLF & _
"var myobj18 = {test18 : function _test18(){}} // test18" & @CRLF & _
"const myobj19 = {test19 : function(){}} // test19" & @CRLF & _
"const myobj20 = {test20 : function _test20(){}} // test20" & @CRLF & _
"!function(a){}(); // test21" & @CRLF & _
"!function test22(b){}(); // test22" & @CRLF & _
"(function(c){})(); // test23" & @CRLF & _
"(function test24(d){})(); // test24" & @CRLF & _
"test25 = function(e){} // test25" & @CRLF & _
"test26 = function _test26(f){} // test26" & @CRLF & _
"let test27 = function(g){} // test27" & @CRLF & _
"let test28 = function _test28(h){} // test28" & @CRLF & _
"var test29 = function(i){} // test29" & @CRLF & _
"var test30 = function _test30(j){} // test30" & @CRLF & _
"const test31 = function(k){} // test31" & @CRLF & _
"const test32 = function _test32(l){} // test32" & @CRLF & _
"myfunc(function(m){}) // test33" & @CRLF & _
"myfunc(function test34(n){}) // test34" & @CRLF & _
"let myobj35 = {" & @CRLF & _
" test35 : function(o){} // test35" & @CRLF & _
"}" & @CRLF & _
"let myobj36 = {" & @CRLF & _
" test36 : function _test36(p){} // test36" & @CRLF & _
"}" & @CRLF & _
"var myobj37 = {" & @CRLF & _
" test37 : function(q){} // test37" & @CRLF & _
"}" & @CRLF & _
"var myobj38 = {" & @CRLF & _
" test38 : function _test38(r){} // test38" & @CRLF & _
"}" & @CRLF & _
"" & @CRLF & _
"test39 = () => {} // test39" & @CRLF & _
"test40 = v => {} // test40" & @CRLF & _
"test41 = (w) => {} // test41" & @CRLF & _
"test42 = (x,y) => {} // test42" & @CRLF & _
"" & @CRLF & _
"let test43 = v => {} // test43" & @CRLF & _
"var myobj44 = {test44 : (w) => {}} // test44" & @CRLF & _
"const myobj45 = {" & @CRLF & _
" test45 : (x,y) => {} // test45" & @CRLF & _
"}" & @CRLF & _
"myfunc(() => {}) // test46" & @CRLF & _
"myfunc(v => {}) // test47" & @CRLF & _
"" & @CRLF & _
"function test48(){} // test48" & @CRLF & _
"function test49(s){} // test49" & @CRLF & _
"function test50(t,u){} // test50"
Local $aArray = StringRegExp($sString, $sRegex, $STR_REGEXPARRAYGLOBALFULLMATCH)
Local $aFullArray[0]
For $i = 0 To UBound($aArray) -1
_ArrayConcatenate($aFullArray, $aArray[$i])
Next
$aArray = $aFullArray
; Present the entire match result
_ArrayDisplay($aArray, "Result")
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for AutoIt, please visit: https://www.autoitscript.com/autoit3/docs/functions/StringRegExp.htm