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Dart 2022-01-30 13:30:40
dart inline if else
int minVal = (a < b) ? a : b; // if(a < b) {minVal = a;} else {minVal = b;} var x = y ?? z; // assign y to x if y is not null, else z var x ??= y; // assign y to x only if x is null myObject?.myProp // (myObject != null) ? myObject.m... Add solution -
Python 2022-01-29 12:40:19
python how to unnest a nested list
# Basic syntax: unnested_list = list(chain(*nested_list)) # Where chain comes from the itertools package and is useful for # unnesting any iterables # Example usage: from itertools import chain nested_list = [[1,2], [3,4]] my_unnested_list = list(chain(... Add solution -
Python 2022-01-26 03:17:08
valueerror need more than 2 values to unpack findcontours
if cv2.getVersionMajor() in [2, 4]: # OpenCV 2, OpenCV 4 case contour, hier = cv2.findContours( thresh.copy(), cv2.RETR_CCOMP, cv2.CHAIN_APPROX_NONE) else: # OpenCV 3 case image, contour, hier = cv2.findContours( ... Add solution -
Other 2022-01-26 03:00:23
letsencrypt free ssl on cpanel
Follow the below steps to install: Step 1: Inside terminal run the following command: git clone https://github.com/acmesh-official/acme.sh Step 2: Install acme.sh by running following command: cd acme.sh/ ./acme.sh --install Step 3: Issue certifi... Add solution