@deck.gl/json/dist/utils/shallow-equal-objects.js

JSON format rendering components for deck.gl

// deck.gl
// SPDX-License-Identifier: MIT
// Copyright (c) vis.gl contributors
// TODO - can we reuse the core util? Assuming we don't want to export it
/* eslint-disable complexity */
// Compares two objects to see if their keys are shallowly equal
export function shallowEqualObjects(a, b) {
    if (a === b) {
        return true;
    }
    if (typeof a !== 'object' || a === null || typeof b !== 'object' || b === null) {
        return false;
    }
    if (Object.keys(a).length !== Object.keys(b).length) {
        return false;
    }
    for (const key in a) {
        if (!(key in b) || a[key] !== b[key]) {
            return false;
        }
    }
    for (const key in b) {
        if (!(key in a)) {
            return false;
        }
    }
    return true;
}
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