Perhaps the simplest option result = {x[‘id’]:x for x in lst1 + lst2}.values() This keeps only unique ids in the list, not preserving the order though. If the lists are really big, a more realistic solution would be to sort them by id and merge iteratively.
Tuple order is as you insert values into the tuple. They’re not going to be sorted as I think you’re asking. zip will again, retain the order you inserted the values in. It’s an acceptable method, but I have 2 alternate suggestions: Use the copy module, or use dtg1 = mdtimes[:]. Sounds reasonable.
I had the same exact issue. What I did was the following: struct ContentView: View { @State var didAppear = false @State var appearCount = 0 var body: some View { Text(“Appeared Count: \(appearrCount)” .onAppear(perform: onLoad) } func onLoad() { if !didAppear { appearCount += 1 //This is where I loaded my coreData information into … Read more
As you are selecting the property, just get the value of the nullable: List<int> lst = Orders.Where(u => u.SplOrderID != null) .Select(u => u.SplOrderID.Value) .ToList();
Solution: member(X, [Y|T]) :- X = Y; member(X, T). Demonstration: ?- member(a, []). fail. ?- member(a, [a]). true ; fail. ?- member(a, [b]). fail. ?- member(a, [1, 2, 3, a, 5, 6, a]). true ; true ; fail. How it works: We are looking for an occurrence of the first argument, X, in the the … Read more
And to complete the answer and stay in the example: import itertools a = [1, 2, 3] b = [4, 5, 6] c = list(itertools.product(a, b)) idx = c.index((1,4)) But this will be the zero-based list index, so 0 instead of 1.
You are looking for any(): if any(‘apple’ in code for code in CODES): … Combined with a simple generator expression, this does the task. The generator expression takes each tuple and yields True if it is contains ‘apple’. any() then returns True when the first item it requests returns True (otherwise, False). Hence this does … Read more
There is also the ListField in django rest framework, see http://www.django-rest-framework.org/api-guide/fields/#listfield wtih the examples: scores = serializers.ListField( child=serializers.IntegerField(min_value=0, max_value=100) ) and (other notation): class StringListField(serializers.ListField): child = serializers.CharField() this seems simpler (maybe this class is added later than the accepted anwser, but seems good to add this option anyway) By the way, it’s added since … Read more