I recently integrated this hash function into my react web app, here is the code:

```
const cyrb53 = function(str, seed = 0) {
let h1 = 0xdeadbeef ^ seed, h2 = 0x41c6ce57 ^ seed;
for (let i = 0, ch; i < str.length; i++) {
ch = str.charCodeAt(i);
h1 = Math.imul(h1 ^ ch, 2654435761);
h2 = Math.imul(h2 ^ ch, 1597334677);
}
h1 = Math.imul(h1 ^ h1>>>16, 2246822507) ^ Math.imul(h2 ^ h2>>>13, 3266489909);
h2 = Math.imul(h2 ^ h2>>>16, 2246822507) ^ Math.imul(h1 ^ h1>>>13, 3266489909);
return 4294967296 * (2097151 & h2) + (h1>>>0);
};
```

One change I made to the code is that I have placed this within a utils file so that this function can be called by multiple components. Here are my slight changes:

```
export function cyrb53(str, seed = 0) { // <- this is the only change I made to integrate this within my apps architecture
let h1 = 0xdeadbeef ^ seed, h2 = 0x41c6ce57 ^ seed;
for (let i = 0, ch; i < str.length; i++) {
ch = str.charCodeAt(i);
h1 = Math.imul(h1 ^ ch, 2654435761);
h2 = Math.imul(h2 ^ ch, 1597334677);
}
h1 = Math.imul(h1 ^ h1>>>16, 2246822507) ^ Math.imul(h2 ^ h2>>>13, 3266489909);
h2 = Math.imul(h2 ^ h2>>>16, 2246822507) ^ Math.imul(h1 ^ h1>>>13, 3266489909);
return 4294967296 * (2097151 & h2) + (h1>>>0);
};
```

I am receiving the following error in my Firefox browser console:

```
Line 95:23: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 95:27: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 95:61: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 95:65: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 96:23: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 96:27: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 96:61: Unexpected mix of '^' and '>>>' no-mixed-operators
Line 96:65: Unexpected mix of '^' and '>>>' no-mixed-operators
```

Looking at W3 docs, I understand that `^`

and `>>>`

operators are for math operations with bytes. Nonetheless I am a unfamiliar with math with bytes in javascript. What is the proper way of resolving this warning?

EDIT:

The accepted answer links another answer and this was flagged as a duplicate, but this topic is slightly different. I asked, "What is happening with my Javascript code (not JSX)" and the answer was "This is actually a eslint warning--not Javascript--and here is a solution."

It is not a javascript error but an eslint warning.

See this answer to get rid of the warning.

Code with solution (use parentheses):

```
export function cyrb53(str, seed = 0) {
let h1 = 0xdeadbeef ^ seed, h2 = 0x41c6ce57 ^ seed;
for (let i = 0, ch; i < str.length; i++) {
ch = str.charCodeAt(i);
h1 = Math.imul(h1 ^ ch, 2654435761);
h2 = Math.imul(h2 ^ ch, 1597334677);
}
h1 = Math.imul(h1 ^ (h1>>>16), 2246822507) ^ Math.imul(h2 ^ (h2>>>13), 3266489909); // <- added parentheses here
h2 = Math.imul(h2 ^ (h2>>>16), 2246822507) ^ Math.imul(h1 ^ (h1>>>13), 3266489909); // <- and added parentheses here; its not much but it is honest work
return 4294967296 * (2097151 & h2) + (h1>>>0);
};
```

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