How to do SELECT MAX in Django?

See this. Your code would be something like the following: from django.db.models import Max # Generates a “SELECT MAX…” query Argument.objects.aggregate(Max(‘rating’)) # {‘rating__max’: 5} You can also use this on existing querysets: from django.db.models import Max args = Argument.objects.filter(name=”foo”) # or whatever arbitrary queryset args.aggregate(Max(‘rating’)) # {‘rating__max’: 5} If you need the model instance that … Read more

Max length UITextField

With Swift 5 and iOS 12, try the following implementation of textField(_:shouldChangeCharactersIn:replacementString:) method that is part of the UITextFieldDelegate protocol: func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool { guard let textFieldText = textField.text, let rangeOfTextToReplace = Range(range, in: textFieldText) else { return false } let substringToReplace = textFieldText[rangeOfTextToReplace] let count … Read more

Min/Max of dates in an array?

Code is tested with IE,FF,Chrome and works properly: var dates=[]; dates.push(new Date(“2011/06/25”)) dates.push(new Date(“2011/06/26”)) dates.push(new Date(“2011/06/27”)) dates.push(new Date(“2011/06/28”)) var maxDate=new Date(Math.max.apply(null,dates)); var minDate=new Date(Math.min.apply(null,dates));

Minimum and maximum date

From the spec, ยง15.9.1.1: A Date object contains a Number indicating a particular instant in time to within a millisecond. Such a Number is called a time value. A time value may also be NaN, indicating that the Date object does not represent a specific instant of time. Time is measured in ECMAScript in milliseconds … Read more

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