@klodianimeri/pipejs/dist/pipes/distinct-until-changed.js

Pipe functions that provide convenient and efficient ways to work with iterators.

export function distinctUntilChanged(comparator) {
    comparator = typeof comparator === 'function' ? comparator : (a, b) => a === b;
    return () => {
        let last;
        return (result) => {
            if ((result === null || result === void 0 ? void 0 : result.done) || !comparator(result.value, last)) {
                last = result.value;
                return result;
            }
        };
    };
}
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