Regular Expressions 101

1st Alternative({})\1

Group 1({})

{}the literal text {}

\1the text saved by group 1

2nd Alternative[{]\s*?(\S*?|\S*?\(.*?\)|['][^']*?[']|["][^"]*?["]|["][^"]*?["]\.\(.*?\))(?:!(\S+?))?\s*?[}]

Character Class[{]

{the literal { (123₁₀ / 173₈ / 7B₁₆)

\s*?any whitespace character, repeated any number of times

Group 2(\S*?|\S*?\(.*?\)|['][^']*?[']|["][^"]*?["]|["][^"]*?["]\.\(.*?\))

1st Alternative\S*?

\S*?any non-whitespace character, repeated any number of times

2nd Alternative\S*?\(.*?\)

\S*?any non-whitespace character, repeated any number of times

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

.*?any character (except for line terminators), repeated any number of times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

3rd Alternative['][^']*?[']

Character Class[']

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Negated Character Class[^']*?

*?matches any number of characters outside the set below:

'the literal ' (39₁₀ / 47₈ / 27₁₆)

Character Class[']

'the literal ' (39₁₀ / 47₈ / 27₁₆)

4th Alternative["][^"]*?["]

Character Class["]

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*?

*?matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Character Class["]

"the literal " (34₁₀ / 42₈ / 22₁₆)

5th Alternative["][^"]*?["]\.\(.*?\)

Character Class["]

"the literal " (34₁₀ / 42₈ / 22₁₆)

Negated Character Class[^"]*?

*?matches any number of characters outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

Character Class["]

"the literal " (34₁₀ / 42₈ / 22₁₆)

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\(the literal ( (40₁₀ / 50₈ / 28₁₆)

.*?any character (except for line terminators), repeated any number of times

\)the literal ) (41₁₀ / 51₈ / 29₁₆)

Non-Capturing Group(?:!(\S+?))?

?repeats the group contents below at most once:

!the literal ! (33₁₀ / 41₈ / 21₁₆)

Group 3(\S+?)

\S+?any non-whitespace character, repeated at least once

\s*?any whitespace character, repeated any number of times

Character Class[}]

}the literal } (125₁₀ / 175₈ / 7D₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

({})\1|[{]\s*?(\S*?|\S*?\(.*?\)|['][^']*?[']|["][^"]*?["]|["][^"]*?["]\.\(.*?\))(?:!(\S+?))?\s*?[}]

New

{0.concat("8a b c d e", 6)}
s df s sd{"one field name".toFixed(7 , 8)}  kjnkj sd asdvs ds sd{0.concat("8a b c d e", 6)} 

ascdac{ "one fieldname".toFixed(7 , 8) }
ascdac{ "onefi eldname" }
{onefieldname.toFixed(7 , 8)}
dfgsdg { "onefieldname".toFixed(7 , 8)}
{onefieldname: "toFixed(7 , 8)"}
{"onefieldname": "toFixed(7 , 8)"}
{ "onefiel dname" : "toFixed(7 , 8)"}
{ "onefiel dname": 8}

{ "onefiel dname" : {"onefi eldname".toFixed(7 , 8)} }
{ "onefiel dname" : {"onefi eldname".toFixed(7 , 8) }}
{ "onefiel dname" : {onefieldname.toFixed(7 , 8)} }
{ "onefiel dname" : {  onefieldname.toFixed(7 , 8)} }