substring
What’s the most efficient way to find one of several substrings in Python?
I would assume a regex is better than checking for each substring individually because conceptually the regular expression is modeled as a DFA, and so as the input is consumed all matches are being tested for at the same time (resulting in one scan of the input string). So, here is an example: import re … Read more
Removing an item from list matching a substring
How about something simple like: >>> [x for x in sents if not x.startswith(‘@$\t’) and not x.startswith(‘#’)] [‘this doesnt’, ‘this shouldnt’, ‘this isnt’, ‘this musnt’]
Why doesn’t Google offer partial search? Is it because the index would be too large?
Google doesn’t actually store the text that it searches. It stores search terms, links to the page, and where in the page the term exists. That data structure is indexed in the traditional database sense. I’d bet using wildcards would make the index of the index pretty slow and as Developer Art says, not very … Read more
Swift 4 ‘substring(from:)’ is deprecated: Please use String slicing subscript with a ‘partial range from’ operator
Follow the below example to fix this warning: Supporting examples for Swift 3, 4 and 5. let testStr = “Test Teja” let finalStr = testStr.substring(to: index) // Swift 3 let finalStr = String(testStr[..<index]) // Swift 4 let finalStr = testStr.substring(from: index) // Swift 3 let finalStr = String(testStr[index…]) // Swift 4 //Swift 3 let finalStr … Read more
C++ How to get substring after a character?
Try this: x.substr(x.find(“:”) + 1);
Java substring: ‘String index out of range’
It is a pity that substring is not implemented in a way that handles short strings – like in other languages e.g. Python. Ok, we cannot change that and have to consider this edge case every time we use substr, instead of if-else clauses I would go for this shorter variant: myText.substring(0, Math.min(6, myText.length()))