How to write big regexp in multiple lines javascript?

Question

I have a long long regexp, like this (it's example):

/111|112|113|...|998|999/

How can I make it multiline to edit it with ease? Something like that:

/
111
|112
|113
...
|998
|999
/

The question has already been answered here http://stackoverflow.com/questions/12317049/how-to-split-a-long-regular-expression-into-multiple-lines-in-javascript — Kiran Yallabandi, Aug 06 '16 at 11:09
If this is really your regex then why not simply `[1-9]{3}` ? — Andreas, Aug 06 '16 at 11:10

score 2 · Accepted Answer · answered Aug 06 '16 at 11:10

2

You can create regexp using constructor:

new RegExp('/'
+ '111'
+ '|112'
+ '|113'
+ '...'
+ '|998'
+ '|999'
+ '/');

From ES6 you can also use backticks to write multiline strings:

new RegExp(`/
111
|112
|113
...
|998
|999
/`);

answered Aug 06 '16 at 11:10

madox2

49,493
17
99
99

This is exactly what I have looked for. Thanks! – Alex Antonov Aug 06 '16 at 11:48

score 1 · Answer 2 · answered Aug 06 '16 at 11:12

1

var str = "/111|112|113|...|998|999/";
var splitArr = str.split("|");

function divide(){
   var s= "";       
   for(var i=0;i<splitArr.length;i++){
    var item = splitArr[i] + "\n";
    s +=  item;
   }
    return s
}

console.log(divide());

answered Aug 06 '16 at 11:12

Özgür Ersil

6,909
3
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How to write big regexp in multiple lines javascript?

2 Answers2