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RyanNutt/isBase64.js

Created June 16, 2017 14:53
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Check if a String is base64 encoded using JavaScript - from https://stackoverflow.com/a/34068497/1561431
Raw
isBase64.js
function isBase64(str) {
try {
return btoa(atob(str)) == str;
} catch (err) {
return false;
}
}
@naothomachida
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Thanks!

@roccomuso
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This doesn't work on Node.js env.

@jameskbecker
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This doesn't work on Node.js env.

you probably didn't install atob and btoa npm packages

@lovelmh13
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if test XXXL or 75ml or sth, is doesn't work

@derrick-null
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Any string of 4 characters, consisting of letters and numbers, can pass the check.

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