is there a regex expression to replace this if condition

Question

I have three string and i need to check if one of them contains the other 2 in the same order given, right now i am using alot of conditions to achive this, is there a way to simplify it using regex?

here is the code:

var a = '**'; var b = '##'; var phrase = '**Lorem ipsum dolor sit amet##'; if(phrase.includes(a) && phrase.includes(b) && (phrase.indexOf(a) < phrase.indexOf(b))) { // add logic }

Does this answer your question? Regex Match all characters between two strings — Robert Harvey
– Robert Harvey, Commented Nov 21, 2021 at 15:09

The fourth bird · Accepted Answer · 2021-11-21 15:13:09Z

You could use a pattern to match ** before ##

^(?:(?!##|\*\*).)*\*\*.*##

^ Start of string
(?:(?!##|\*\*).)* Match any char while not directly followed by either ## or **
\*\* First match **
.* Match any character 0+ times
## Match ##

Regex demo

var phrase = '**Lorem ipsum dolor sit amet##'; if (phrase.match(/^(?:(?!##|\*\*).)*\*\*.*##/)) { // add logic }

var phrases = [ '**Lorem ipsum dolor sit amet##', 'test****#**##', '##**Lorem ipsum dolor sit amet##', '##**##**', ]; phrases.forEach(phrase => { if (phrase.match(/^(?:(?!##|\*\*).)*\*\*.*##/)) { console.log(`Match for ${phrase}`); } else { console.log(`No match for ${phrase}`); } });

@evolutionxbox Because that something simpler gives a false positive here regex101.com/r/IO4n0u/1

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