Sha256: a504a314ea1e75123669bb6edade13f5abb283cb3eafebd3bb0b8065ddf8455d
Contents?: true
Size: 1.43 KB
Versions: 27
Compression:
Stored size: 1.43 KB
Contents
'use strict';
var GetIntrinsic = require('get-intrinsic');
var $TypeError = GetIntrinsic('%TypeError%');
var Call = require('./Call');
var SameValue = require('./SameValue');
var ToNumber = require('./ToNumber');
var Type = require('./Type');
var isNaN = require('../helpers/isNaN');
// https://262.ecma-international.org/14.0/#sec-comparetypedarrayelements
module.exports = function CompareTypedArrayElements(x, y, compareFn) {
var xType = Type(x);
var yType = Type(y);
if (xType !== yType || (xType !== 'BigInt' && xType !== 'Number')) {
throw new $TypeError('Assertion failed: `x` and `y` must be either a BigInt or a Number, and both must be the same type');
}
if (typeof compareFn !== 'function' && typeof compareFn !== 'undefined') {
throw new $TypeError('Assertion failed: `compareFn` must be a function or undefined');
}
if (typeof compareFn !== 'undefined') { // step 2
var v = ToNumber(Call(compareFn, void undefined, [x, y])); // step 2.a
if (isNaN(v)) {
return 0; // step 2.b
}
return v; // step 2.c
}
var xNaN = isNaN(x);
var yNaN = isNaN(y);
if (xNaN && yNaN) {
return 0; // step 3
}
if (xNaN) {
return 1; // step 4
}
if (yNaN) {
return -1; // step 5
}
if (x < y) {
return -1; // step 6
}
if (x > y) {
return 1; // step 7
}
if (SameValue(x, -0) && SameValue(y, 0)) {
return -1; // step 8
}
if (SameValue(x, 0) && SameValue(y, -0)) {
return 1; // step 9
}
return 0; // step 10
};
Version data entries
27 entries across 27 versions & 2 rubygems