redext
Version:
A simple global store based on React Context and Hooks
28 lines (27 loc) • 727 B
JavaScript
// src/utils/shallowEqual.ts
var hasOwn = Object.prototype.hasOwnProperty;
function is(x, y) {
if (x === y) {
return x !== 0 || y !== 0 || 1 / x === 1 / y;
} else {
return x !== x && y !== y;
}
}
function shallowEqual(objA, objB) {
if (is(objA, objB)) return true;
if (typeof objA !== "object" || objA === null || typeof objB !== "object" || objB === null) {
return false;
}
const keysA = Object.keys(objA);
const keysB = Object.keys(objB);
if (keysA.length !== keysB.length) return false;
for (let i = 0; i < keysA.length; i++) {
if (!hasOwn.call(objB, keysA[i]) || !is(objA[keysA[i]], objB[keysA[i]])) {
return false;
}
}
return true;
}
export {
shallowEqual as default
};