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Dependency injection through constructors or property setters?
...tructor means that you can validate all at once. If you assign things into read-only fields then you have some guarantees about your object's dependencies right from construction time.
It is a real pain adding new dependencies, but at least this way the compiler keeps complaining until it's correct...
Ruby: Can I write multi-line string with no concatenation?
...tioning that, though. Also, the ~ is unnecessary, gsub \s+ and strip are already removing leading whitespace.
– A. Wilson
May 18 '16 at 19:19
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Eclipse returns error message “Java was started but returned exit code = 1”
...ne (VM) and can't lower the -Xms value (for instance, the bat file is on a read-only shared drive), then allocate more memory to the VM. Seems obvious but I overlooked this for an hour.
– Skurfur
Jul 19 '17 at 3:46
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What does “#pragma comment” mean?
...+ to leave a comment in the generated object file. The comment can then be read by the linker when it processes object files.
#pragma comment(lib, libname) tells the linker to add the 'libname' library to the list of library dependencies, as if you had added it in the project properties at Linker-&...
Mysql error 1452 - Cannot add or update a child row: a foreign key constraint fails
...if I understand this correctly, we can add a foreign key to a table that already has data in it, but only if a child row exists for each row in the parent table? If there are no child rows for each row in the parent table (which is what your query discovers) then the foreign key script will fail.
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What exactly does the Access-Control-Allow-Credentials header do?
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This is such a clear answer that anyone reading it the first time can understand and fix their code that doesn't seem to be working well with cookies. Thanks!
– asgs
Jun 21 '16 at 18:06
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Check if a row exists, otherwise insert
...pped by a transaction". If the transaction is implemented correctly, the thread safe issue should not be an issue.
– Gregory A Beamer
Sep 27 '11 at 14:37
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How to do Base64 encoding in node.js?
...that can result from using it in the ws library.
The code snippets should read:
console.log(Buffer.from("Hello World").toString('base64'));
console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'));
After this answer was written, it has been updated and now matches this.
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How to fix Error: “Could not find schema information for the attribute/element” by creating schema
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Thanks. This worked, but is there a good place I can read to understand WHY this happens? It seems like I just all of a sudden needed to generate a schema for my web.config after adding a lot of content for DotNetOpenAuth and then re-generating an edmx file from scratch. It m...
Why are Python's 'private' methods not actually private?
...: "sure". If you think you understand the situation, perhaps you have even read it, then all we can say is "good luck!".
Remember, encapsulation is not even weakly related to "security", or keeping the kids off the lawn. It is just another pattern that should be used to make a code base easier to u...