Function deduplicateRelational

test/fixtures/snapshot/typescript.js:981–999

(array, equalityComparer, comparer)

    }
    ts.indicesOf = indicesOf;
    function deduplicateRelational(array, equalityComparer, comparer) {
        // Perform a stable sort of the array. This ensures the first entry in a list of
        // duplicates remains the first entry in the result.
        var indices = indicesOf(array);
        stableSortIndices(array, indices, comparer);
        var last = array[indices[0]];
        var deduplicated = [indices[0]];
        for (var i = 1; i < indices.length; i++) {
            var index = indices[i];
            var item = array[index];
            if (!equalityComparer(last, item)) {
                deduplicated.push(index);
                last = item;
            }
        }
        // restore original order
        deduplicated.sort();
        return deduplicated.map(function (i) { return array[i]; });
    }
    function deduplicateEquality(array, equalityComparer) {
        var result = [];
        for (var _i = 0, array_4 = array; _i < array_4.length; _i++) {