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javascript如何取得檔案的副檔名?

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Mark ChangMark Chang
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var filename_a = "aaa.jpg";
alert(getFileExtension(filename_a)); //returs jpg

function getFileExtension(filename) {
/**/
}

使用String 的 split 方法
function getFileExtension(filename) {
return filename.split('.').pop();
}

以上紀錄。

 
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