javascript - 求一个js 正则匹配 data:image/＊;base64,

Question

它可能是
data:image/jpeg;base64,
data:image/png;base64,
data:image/gif;base64,

Answer 1

replace(/^.*?,/,'')

Answer 2

/^data:image\/(jpeg|png|gif);base64,/

Answer 3

更通用点的

('data:image/jpeg;base64,').replace(/data:image\/([^;]+).*/i,'$1');//jpeg

Answer 4

/^data:image/(jpeg|png|gif);base64$/g