RegExp to check if file is image Code Answer

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Is there a way to know if the file extension is an image?

i got this.


Already try with

var imageReg = /.(gif|jpg|jpeg|tiff|png)$/i;
string = "image/png"

But this return false;


Put dot and / inside a character class so that it would match .png or /png strings.

var imageReg = /[/.](gif|jpg|jpeg|tiff|png)$/i;

Your regex would return true if there is a dot before png but here there exists a forward slash, so it fails.

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