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431 B
JavaScript

'use strict';
module.exports = Buffer.compare || function (a, b) {
if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {
throw new TypeError('Arguments must be Buffers');
}
if (a === b) {
return 0;
}
var x = a.length;
var y = b.length;
var len = Math.min(x, y);
for (var i = 0; i < len; i++) {
if (a[i] !== b[i]) {
break;
}
}
if (i !== len) {
x = a[i];
y = b[i];
}
return x < y ? -1 : y < x ? 1 : 0;
};