正则表达式 JavaScript 图像文件扩展名
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Regex JavaScript image file extension
提问by prcaen
I need a regular expression to validate image file extensions in javascript. Do you have one ?
我需要一个正则表达式来验证 javascript 中的图像文件扩展名。你是否有一个 ？
回答by g13n
Could you explain the purpose?
你能解释一下目的吗？
Anyway here's one assuming you support few image types.
无论如何，这里假设您支持几种图像类型。
(/\.(gif|jpe?g|tiff|png|webp|bmp)$/i).test(filename)
I have put the whole regular expression within parens () so as to disambiguate between the slash (/) operator and RegExp object. See JSLint for more details.
我已将整个正则表达式放在 parens () 中，以便消除斜杠 (/) 运算符和 RegExp 对象之间的歧义。有关更多详细信息，请参阅 JSLint。
Here's the raw regex as well.
这也是原始的正则表达式。
/\.(gif|jpe?g|tiff|png|webp|bmp)$/i
This Regex also assumes that you're including the dot before the extension. Remove the \.if you're not.
此正则表达式还假定您在扩展名之前包含点。\.如果不是，请删除。
