@uwdata/mosaic-core/dist/src/util/distinct.js

Scalable and extensible linked data views.

export function distinct(a, b) {
    return a === b ? false
        : a instanceof Date && b instanceof Date ? +a !== +b
            : Array.isArray(a) && Array.isArray(b) ? distinctArray(a, b)
                : true;
}
export function distinctArray(a, b) {
    if (a.length !== b.length)
        return true;
    for (let i = 0; i < a.length; ++i) {
        if (a[i] !== b[i])
            return true;
    }
    return false;
}
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