如何用 JavaScript 获取当前 URL 的文件名

ar docUrl = document.URL;
var lastPipe = docUrl.lastIndexOf( '/ ');
var lastPeriod = docUrl.lastIndexOf( '. ');
var fileName;
if (lastPipe < lastPeriod)
fileName = docUrl.substring(lastPipe + 1, lastPeriod);
else

fileName = ' ';Jaript
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当前 URL 的文件名