Javascript: Regex case insensitive [duplicate]

Question

I have the following regex expression being used in a JavaScript function.

regex = /(([a-zA-Z]{3})+([0-9]{12})+(.zip))$/g;

I want the last characters (.zip) also as case insensitive. How to achieve this ? Thanks

ellipsis · Accepted Answer · 2019-02-15 06:17:10Z

2

Use i modifier

var regex = /(([a-z]{3})+([0-9]{12})+(\.zip))$/ig; 
var str="abAc772345678989.ZIP";
console.log(regex.test(str))

answered Feb 15, 2019 at 6:08

ellipsis

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2 Comments

Why not use the i flag simply? Also, the . before the zip in the regex will match any character except newline. Not just .

OP says "case-insensitive" so to be thorough, you'd need to handle "ZiP", "zIP", "ZIp", etc