js正则匹配获取文件名

//获取文件名,不带后缀
var file_name=file_path.replace(/(.*\/)*([^.]+).*/ig,"$2");

//获取文件后缀
1.var FileExt=file_path.replace(/.+\./,"");

2.var fileExtension = file_path.substring(file_path.lastIndexOf('.') + 1);

//截取文件后缀
var reg = /\.\w+$/;
var file_name = file_path.replace(reg,'');

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转载自blog.csdn.net/qq_38836082/article/details/80859765