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Using multiple let-as within a if-statement in Swift
I'm unwrapping two values from a dictionary and before using them I have to cast them and test for the right type. This is what I came up with:
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Is it possible to roll back CREATE TABLE and ALTER TABLE statements in major SQL databases?
I am working on a program that issues DDL. I would like to know whether CREATE TABLE and similar DDL can be rolled back in
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Difference between Destroy and Delete
What is the difference between
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Is it ever advantageous to use 'goto' in a language that supports loops and functions? If so, why?
I've long been under the impression that goto should never be used if possible. While perusing libavcodec (which is written in C) the other day, I noticed multiple uses of it. Is it ever advantageous to use goto in a language that supports loops and functions? If so, why?
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How do I find the most recent git commit that modified a file?
I want to find the most recent commit that modified a source file.
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ActiveRecord: size vs count
In Rails, you can find the number of records using both Model.size and Model.count . If you're dealing with more complex queries is there any advantage to using one method over the other? How are they different?
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Identifying and removing null characters in UNIX
I have a text file containing unwanted null characters (ASCII NUL, \0 ). When I try to view it in vi I see ^@ symbols, interleaved in normal text. How can I:
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How can I decompress a gzip stream with zlib?
Gzip format files (created with the gzip program, for example) use the "deflate" compression algorithm, which is the same compression algorithm as what zlib uses. However, when using zlib to inflate a gzip compressed file, the library returns a Z_DATA_ERROR .
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Are multiple `.gitignore`s frowned on?
Unless a repo consisted of several independent projects, it seems it would be simplest to just have one .gitignore file at the root of the repo than various ones throughout. Is there a standard best practice on this or some analysis online of when one approach is better than the other?
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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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