Javascript - can't override a global variable?

Question

This line:

console.log('crypto: ' + crypto);

prints crypto: [object Crypto]

If I do this:

var crypto = "mystring";
console.log('crypto: ' + crypto);

I still get crypto: [object Crypto]. I would expect it to print crypto: mystring. Why doesn't it?

Please make a [MCVE]. At the moment, your error cannot be reproduced. — CertainPerformance, Aug 03 '18 at 10:07
@CertainPerformance just inject it in any HTML, load the page and open the console. Are you saying it prints `crypto: mystring` ? — Vytautas, Aug 03 '18 at 10:37
Why do you want to override the crypto object? And if you want to do so, do you need the crypto object later? — pavi2410, Aug 03 '18 at 11:09
Just to see if I can. And if I can't, to understand why. I won't need it later. — Vytautas, Aug 03 '18 at 11:12

score 1 · Accepted Answer · answered Aug 03 '18 at 11:13

1

As you want to override the crypto object with some string, you can do so like this

delete crypto
var crypto = "mystring"
console.log("crypto = " + crypto) // crypto = mystring

answered Aug 03 '18 at 11:13

pavi2410

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score 0 · Answer 2 · answered Aug 03 '18 at 13:52

Crypto is an library in Javascript. Thats why there is a problem i guess. I tried replacing crypto with other words and it worked fine.

delete crypto var crypto = "mystring" console.log("crypto = " + crypto) // crypto = mystring

crypto. This library is an object oriented cryptography toolkit that implements several fundamental cryptographic algorithms including TWOFISH, SERPENT, RIJNDAEL, RSA with key-generation and SHA(SHA-1,224,256,384,512) for JavaScript. ... The unique feature of this library is asynchronous processing.

Javascript - can't override a global variable?

2 Answers2