As in boolean algebra + is OR you can simplify it with: F = A*B*C*D + A*B*C*D + A*B*C*D + A*B*C*D (A v A) = A = A*B*C*D + A*B*C*D + A*B*C*D (A v A) = A = A*B*C*D + A*B*C*D (A v A) = A = A*B*C*D (A v A) = A F = … Read more
Pointers-to-members are a special gadget in C++ that tell only tell you about a which member of a class you want without pertaining to any object. You need to combine a pointer-to-member with an object instance in order to obtain an actual member, whether it be a data or a function member. Think of pointers-to-member … Read more
You should try %d instead of %o. Because %o will print octal integers and your expected answer is of base 10 (decimal). solved Why my program is skipping the digit 8 and 9? [duplicate]
you have several options, and i will list them right below, though i really recommend doing it by yourself if you have the time and resources, it will look better and fill much more natural than using a library (that usually just changes the mix-blend-mode in your css. darkmode.js – I believe that they are … Read more
You must provide only 1 package within single folder. Consider to name package like the folder. In your case create folder “utils” and move your helper.go in there. Please, don’t forget to name public types, vars and funcs properly: start their names with uppercase symbol: Finally your project would look like this: Your helper.go would … Read more
Using the structure recommended by Nick Cardoso but with many changes to meet my case, i managed to solve the problem. here it is: class A extends Service { ArrayList arrayList = new ArrayList(); MyApplication app; void foo(){ new Thread (new Runnable (){ @Override public void run() { app = (MyApplication)getApplication(); While(true){ //get elements from … Read more
I believe it should just be a couple of small typos. First, your second line looks like it should be indented, and where you have links[“property”], it looks like you would want link[“property”]. for link in links: payload[f’Links[{link[“property”]}][url]’] = link[‘url’] The reason it is giving you that error is that you are trying to get … Read more
You can ask the database to secure your table and column names, using quote_ident(), before you create the query you want to execute. You need something like this: <?php $table=”table name”; // unsafe $column = ‘column name’; // unsafe $result = pg_query_params($connection, ‘SELECT quote_ident(CAST($1 AS text)), quote_ident(CAST($2 AS text));’, array($table, $column) ); $table = pg_fetch_result($result, … Read more
In R it is always preferable to avoid loops wherever possible, as they are usually much slower than alternative vectorized solutions. This operation can be done with a data.table join. Basically, when you run dt1[dt2]; you are performing a right-join between the two data.tables. The preset key columns of dt1 determine which columns to join … Read more
This probably has to do with linting, Maybe this can help you no-unused-vars You can also disable linting on one line // eslint-disable-next-line no-unused-vars const [edit, setEdit] = useState({…}) solved Turnoff a certain warning in VSCode
Do you know about integer limits? A char value takes up 1 byte. A byte is usually 8 bits. To calculate the limit through the number of bits, the calculation is 2^n-1 meaning an integer with 8 bits has a range from 0 to 255 when unsigned. Since your variable is signed, it allocates a … Read more
If you store Ids as comma separated string – you always have TABLE/INDEX scan. If your table is small it can be enough. With SecondaryTable table which stores Ids associated with main table there a lot of other plans: You can leave as is and trust or not DB Engine optimiser query = query.Where(x => … Read more
It’s because a CASE WHEN can only return 1 value. And a STRING_SPLIT returns a resultset. I assume something like this is what you want. SELECT * FROM Facility f WHERE (@Facility IS NULL OR f.facilityCode IN (SELECT value FROM string_split(@Facility,’,’))) This will get all records if the variable is null. 2 solved Can I … Read more
You can find white dot by numpy.where. You can try this way: import numpy as np import cv2 img = cv2.imread(‘XXWck.png’) x, y, z = np.where(img==(255,255,255)) points = zip(x,y) print(points) 1 solved Get X and Y coordinates of white dot in a black screen python [closed]
Keeping it simple, you could do something like this: reading = 0 notReading = 0 for book in bookLogger: if book[‘Process’] == ‘Reading’: reading += 1 elif book[‘Process’] == ‘Not Reading’: notReading += 1 print(f’Reading: {reading}’) print(f’Not Reading: {notReading}’) Alternatively, you could also use python’s list comprehension: reading = sum(1 for book in bookLogger if … Read more