Why does the regular expression /razazlt do not select the second point?

Question

var str = "sos"; str = str.replace(/([az])(\.)([az])/g, "$1$3"); // => "so.s"

How to get "sos"?

Because the first match captures the letter о and for the second time only .s. remains .s.

Visman Visman 16.2k eight 21 52 · Accepted Answer · 2016-06-24T08:53:48

 var str = ".ss....os"; str = str.replace(/([az])\.+(?=[az])/gi, "$1"); alert(str);

To the points, the letter is captured ([az]) , after the point there is no (?=[az]) and replaced with the captured letter $1 .

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