I have a piece of code that calculates the sum of a number of variables. For example, with 3 variables (A = 1, B = 2, C = 3) it outputs the sum X = 6. The way the code is implemented this is set up as a list with two strings: Y = [[‘X’,… Read More How can I use the python compile function on an empty string?
Rubocop dislikes the following; it issues Pass a binding, __FILE__ and __LINE__ to eval.: sort_lambda = eval "->(a) { a.date }" Yes, I know that eval is a security problem. The issue of security is out of scope for this question. The Ruby documentation on binding says: Objects of class Binding encapsulate the execution context… Read More How to Make Or Reference a Null Ruby Binding For Eval
I thought this would be something simple to do, but I don’t think it’s possible, why is that? This is what I’m trying to do. console.log("hello") ? bool : ""; This gives me an error: Expected an assignment or function call and instead saw an expression. Not sure exactly what that means. >Solution : Yes.… Read More Is it possible to use ternary operator for console.log?
Hi I’ve been learning ReactJs and I wrote these lines: handlerClick(i) { this.setState( (state) => (state.squares = […state.squares, (state.squares[i] = "X")]) ); } Now, I know whats happening but I’m confused with how this is working, the order that each operation is being executed… >Solution : Regarding the order of operations, everything to the right… Read More Can someone explain how this state update is resolved?
I’ve got the following code, but unfortunately it only changes the value inside the list. Is there any way I can change the value outside the list, so it can be used later in the script? street_number = "100 & 102" street_name = "Fake Street" suburb = "Faketown" allvariables = [street_number, street_name, suburb] ampersand =… Read More Need to check all my variables for an ampersand, I put variables in a list and check using a for loop, but Python only changes value inside list
I have form with js validation, and I need to action on php file through js, how I can this do better. Can you help and say who is better to do it. if you directly connect the action to the php file, then everything works, but how can I do it through js? FORM… Read More Javascript action php
I have a pandas dataframe where I wanted to find the percentage cutoff for most prevalent brand customer added to his cart.(New column: Percentage Cutoff for brand) customerID Date Brand Brand Count Percentage Cutoff for brand 1 1-1-2021 Tomy Hilfigure 3 75% 1 1-1-2021 Adidas 1 75% 2 2-1-2021 Club Room 2 66% 2 2-1-2021… Read More Find the percentage cutoff for brand added by a customer
The following data exists in the database: [ { "_id": { "$oid": "628c787de53612aad30021ab" }, "ticker": "EURUSD", "dtyyyymmdd": "20030505", "time": "030000", "open": "1.12161", "high": "1.12209", "low": "1.12161", "close": "1.12209", "vol": "561", "id": 1 }, { "_id": { "$oid": "628c787de53612aad30021ac" }, "ticker": "EURUSD", "dtyyyymmdd": "20030505", "time": "030100", "open": "1.12206", "high": "1.1225", "low": "1.12206", "close": "1.1225", "vol": "1223",… Read More Unable to retrieve multiple values from database
I have a preprocessor directive that I do not set, so I cannot change it, it is either true or false. Normally I would have done : #ifdef DIRECTIVE // code #endif But this will always run, since DIRECTIVE is always defined. Is there a way that I can do basically the equivalent of: #if… Read More Can I test the value of a preprocessor directive?
I’m trying to insert some values into my vertica database using the vertica_python module: data = {‘SalesNo’: [‘12345’, ‘678910’], ‘ProductID’: [‘12345_2021-10-21_08:51:22’, ‘678910_2021-10-21_10:27:03’], ‘StoreID’: [‘6d522936e240cd64e1cf9176c5bfdff3bfe8146a345ff2’, ‘a7274d507d443c752be66b2851415138d75bd913d4949e’], ‘PurchaseTime’: [‘2021-10-21 08:51:22.846000’, ‘2021-10-21 10:44:06.218000’], ‘Date’: [‘2021-10-21’, ‘2021-10-21’], ‘StoreNumber’: [‘0’, ‘1’], ‘PurchaseValue’: [‘348.0’, ‘4893.23’] } dataset = pd.DataFrame(data) column = dataset.columns n = len(column) SQL_insert = f"INSERT INTO table_name ({‘,’.join(list(column))})… Read More TypeError: not all arguments converted during string formatting in vertica_python