Iterate through a HashMap [duplicate]
Iterate through the entrySet() like so: Read more about Map.
Undefined reference to vtable
So, I’ve figured out the issue and it was a combination of bad logic and not being totally familiar with the automake/autotools world. I was adding the correct files to my Makefile.am template, but I wasn’t sure which step in our build process actually created the makefile itself. So, I was compiling with an old … Read more
Evaluate a string with a switch in C++ [duplicate]
I want to evaluate a string with a switch but when I read the string entered by the user throws me the following error. error: invalid cast from type ‘std::string {aka std::basic_string}’ to type ‘int
What does “SyntaxError: Missing parentheses in call to ‘print'” mean in Python?
This error message means that you are attempting to use Python 3 to follow an example or run a program that uses the Python 2 print statement: The statement above does not work in Python 3. In Python 3 you need to add parentheses around the value to be printed: “SyntaxError: Missing parentheses in call to ‘print’” is … Read more
Undo git pull, how to bring repos to old state
Running git pull performs the following tasks, in order: git fetch git merge The merge step combines branches that have been setup to be merged in your config. You want to undo the merge step, but probably not the fetch (doesn’t make a lot of sense and shouldn’t be necessary). To undo the merge, use git reset –hard to reset the local repository to … Read more
How do I escape a single quote in SQL Server?
Single quotes are escaped by doubling them up, just as you’ve shown us in your example. The following SQL illustrates this functionality. I tested it on SQL Server 2008: Results
You have not concluded your merge (MERGE_HEAD exists)
OK. The problem is your previous pull failed to merge automatically and went to conflict state. And the conflict wasn’t resolved properly before the next pull. Undo the merge and pull again.To undo a merge:git merge –abort [Since git version 1.7.4]git reset –merge [prior git versions] Resolve the conflict. Don’t forget to add and commit the merge. … Read more
Get the last item in an array
Update 13 July 2021 The new at() method allows you to use negative indices to mean “from the end”. You can access the last item of locArray like this: At time of update, the at() method is supported in Chrome 92+, FireFox 90+, Node 16 and Deno 1.12+ Older answer In the event that your server serves the same file for … Read more
Does JavaScript have a method like “range()” to generate a range within the supplied bounds?
It works for characters and numbers, going forwards or backwards with an optional step. jsFiddle. If augmenting native types is your thing, then assign it to Array.range. Show code snippet
How to loop through an array containing objects and access their properties
Use forEach its a built-in array function. Array.forEach():