How can i clean the XCUIElement which type is textField?

Question

XCUIElement *textField = app.textFields[@"xxxxx"];
[textField tap];
[textField typeText:@"12345678910"];
XCUIElement *key = app.keys[@"xx"]; (the "xx" is delete key)
    for (int a=0; a<11; a++) {
        [key tap];
    }

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What i want to achieve is

textfield.text = @""

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This method is too slow.

Answer 1

I am using this helper function:

-(void)clearField:(XCUIElement *)textField {
    [textField doubleTap];
    [app.menuItems[@"Select All"]tap];
}

and calling it via:

[self clearField: app.textFields[@"Last Name"]];