这个正则啥意思？

Question

return dataURL.replace(/^data:image\/(png|jpg);base64,/, "");

Answer 1

var dataURL = 'data:image/jpg;base64,1123'console.log(dataURL.replace(/^data:image/(png|jpg);base64,/,""))结果： 1123一看就明白了清除data:image/jpg;base64,或data:image/png;base64,开头的字符串