@hyperlane-xyz/utils/dist/sets.js

General utilities and types for the Hyperlane network

// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Set#implementing_basic_set_operations
export function difference(a, b) {
    const _difference = new Set(a);
    for (const elem of b) {
        _difference.delete(elem);
    }
    return _difference;
}
export function symmetricDifference(a, b) {
    const _difference = new Set(a);
    for (const elem of b) {
        if (_difference.has(elem)) {
            _difference.delete(elem);
        }
        else {
            _difference.add(elem);
        }
    }
    return _difference;
}
export function setEquality(a, b) {
    return symmetricDifference(a, b).size === 0;
}
export function intersection(a, b) {
    const _intersection = new Set();
    a.forEach((elem) => {
        if (b.has(elem)) {
            _intersection.add(elem);
        }
    });
    return _intersection;
}
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