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Concatenating string and integer in python
In python say you have
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How to add new item to hash
I'm new to Ruby and don't know how to add new item to already existing hash. For example, first I construct hash:
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How update the _id of one MongoDB Document?
I want update an _id field of one document. I know it's not a really good pratice. But with some technical reason, I need update it. If I try to update it I get:
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Easiest way to copy a single file from host to Vagrant guest?
I have a use case where I occasionally want to copy a single file from my host machine to the Vagrant guest.
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Resumable downloads when using PHP to send the file?
We are using a PHP scripting for tunnelling file downloads, since we don't want to expose the absolute path of downloadable file:
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Meaning of acronym SSO in the context of std::string
In a C++ question about optimization and code style , several answers referred to "SSO" in the context of optimizing copies of std::string . What does SSO mean in that context?
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How can I push a local Git branch to a remote with a different name easily?
I've been wondering if there's an easy way to push and pull a local branch with a remote branch with a different name without always specifying both names.
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What is the difference between the kernel space and the user space?
What is the difference between the kernel space and the user space? Do kernel space, kernel threads, kernel processes and kernel stack mean the same thing? Also, why do we need this differentiation?
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How can I reset a react component including all transitively reachable state?
I occasionally have react components that are conceptually stateful which I want to reset. The ideal behavior would be equivalent to removing the old component and readding a new, pristine component.
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Is there a literal notation for an array of symbols?
I like this literal expression for an array of strings:
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