String.fromCharCode got different results between browser and nodejs

Question

I had trouble using String.fromCharCode in JavaScript(I used it in browser and nodejs), When the parameter was less than 128, I got the same result, but when it was over 128, the result of nodejs was wrong. here is the code and the result in browser:

window.btoa(String.fromCharCode(127))

in nodejs:

Buffer.from(String.fromCharCode(127)).toString('base64')

code & result

so, how can I get the right result with nodejs code?

Hi, welcome to stackoverflow. Could you please copy and paste the output rather than posting an image ? It will greatly improve the quality of your question. If you have any question, refer to the how to ask section — Nicolas
– Nicolas, Commented Nov 20, 2019 at 13:40

Pointy · Accepted Answer · 2019-11-20 13:45:40Z

1

When you do the Buffer.from() call you have to pass "binary" as the second parameter:

Buffer.from(String.fromCharCode(127), "binary").toString('base64')

answered Nov 20, 2019 at 13:45

Pointy

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