How can I strip the data:image part from a base64 string of any image type in Javascript

You can use a regular expression:

var strImage = strToReplace.replace(/^data:image\/[a-z]+;base64,/, "");

---

• ^ means At the start of the string
• data:image means data:image
• \/ means /
• [a-z]+ means One or more characters between a and z
• ;base64, means ;base64,

var solution = string.split("base64,")[1];

Splits the variable string at "base64," than take the second part.

This worked for me :

var strImage = strToReplace.split(',')[1];