Tarik There is a built in lookup function that can handle this type of situation (looks up by row/column). I don’t know how optimized it is, but may be faster than the apply solution. In [9]: df[‘value’] = df.lookup(df.index, df[‘best’]) In [10]: df Out[10]: Date best a b c d value 0 1990 a 5 4 … Read more
(Some of this is x86 and Intel-specific. Most of the key points apply to any CPU that does hardware page walks. I also discuss ISAs like MIPS that handle TLB misses with software.) Modern x86 microarchitectures have dedicated page-walk hardware. They can even speculatively do page-walks to load TLB entries before a TLB miss actually … Read more
You don’t really need an XHR, since you can use http.request that comes natively with NodeJS, with it you can send GET, POST and PUT requests with headers and body. Here is the link to the documentation http.request.
Update for Git 2.23 (Q3 2019), you now have git config tag.gpgSign true! Original answer (June 2018) While there is no “signed by default” mode for git tag, the documentation mentions: Once you have a private key to sign with, you can configure Git to use it for signing things by setting the user.signingkey config … Read more
Newer Mingw versions support -municode linker option switching to alternate startup code allowing to use wWinMain instead of WinMain (or wmain instead of main). Add it to your command line, linker options in IDE or makefile. g++ other_options_and_arguments -municode Older versions do not support this option. One thing to note is that Visual C++ supports … Read more
jsx property allows us to use .tsx files in the project So following are two steps of using React with Typescript 1.Name your files with a .tsx extension 2.Enable the jsx option TypeScript ships with three JSX modes: preserve, react, and react-native. These modes only affect the emit stage – type checking is unaffected. The … Read more
TLDR; The difference comes down to direct access vs. delegated access. OAuth allows you to make delegated access. The benefits of delegated access don’t change if there is a user involved or not. The same arguments that make the OAuth Authorization code flow attractive for user-to-machine access, apply to the OAuth Client credentials flow for … Read more
SQL Server Maximum Columns Limit Bytes per short string column 8,000 Bytes per GROUP BY, ORDER BY 8,060 Bytes per row 8,060 Columns per index key 16 Columns per foreign key 16 Columns per primary key 16 Columns per nonwide table 1,024 Columns per wide table 30,000 Columns per SELECT statement 4,096 Columns per INSERT … Read more