function elementAtOrDefault(index, or) {
    return async function (it) {
        var e_19, _a;
        let i = 0;
        try {
            for (var it_2 = __asyncValues(it), it_2_1; it_2_1 = await it_2.next(), !it_2_1.done;) {
                const item = it_2_1.value;
                if (i === index) {
                    return item;
                }
                i = i + 1;
            }
        }
        catch (e_19_1) { e_19 = { error: e_19_1 }; }
        finally {
            try {
                if (it_2_1 && !it_2_1.done && (_a = it_2.return)) await _a.call(it_2);
            }
            finally { if (e_19) throw e_19.error; }
        }
        return or;
    };
}
function elementAtOrDefault(index, or) {
    return async function (it) {
        var e_19, _a;
        let i = 0;
        try {
            for (var it_2 = __asyncValues(it), it_2_1; it_2_1 = await it_2.next(), !it_2_1.done;) {
                const item = it_2_1.value;
                if (i === index) {
                    return item;
                }
                i = i + 1;
            }
        }
        catch (e_19_1) { e_19 = { error: e_19_1 }; }
        finally {
            try {
                if (it_2_1 && !it_2_1.done && (_a = it_2.return)) await _a.call(it_2);
            }
            finally { if (e_19) throw e_19.error; }
        }
        return or;
    };
}
function elementAtOrDefault ( index , or ) { return async function ( it ) { var e_19 , _a ; let i = 0 ; try { for ( var it_2 = __asyncValues ( it ) , it_2_1 ; it_2_1 = await it_2 . next ( ) , ! it_2_1 . done ; ) { const item = it_2_1 . value ; if ( i === index ) { return item ; } i = i + 1 ; } } catch ( e_19_1 ) { e_19 = { error : e_19_1 } ; } finally { try { if ( it_2_1 && ! it_2_1 . done && ( _a = it_2 . return ) ) await _a . call ( it_2 ) ; } finally { if ( e_19 ) throw e_19 . error ; } } return or ; } ; }
Enumerate until index and return the element at index, or consumes and return undefined
Enumerate until index and return the element at index or consumes and return undefined