Discovering image file extensions in JavaScript using regular expressions

Can anyone provide me with a javascript regular expression to validate image file extensions?

Answer №1

What is the intention behind this code?

Here's an example assuming you only want to support certain image file types.

(/\.(gif|jpe?g|tiff?|png|webp|bmp)$/i).test(filename)

I have enclosed the entire regular expression in parentheses () to clarify the distinction between the slash (/) operator and RegExp object. Refer to JSLint for more insights.

Additionally, here is the raw regex:

/\.(gif|jpe?g|tiff?|png|webp|bmp)$/i

This Regex also assumes that you're including the dot before the extension. Remove the \. if not needed.

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