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What is the difference between bottom-up and top-down?
...ack size limit in languages which allow it, or 2) eat a constant factor of extra work to virtualize your stack (ick), or 3) program in continuation-passing style, which in effect also virtualizes your stack (not sure the complexity of this, but basically you will effectively take the deferred call c...
What is the documents directory (NSDocumentDirectory)?
...DomainMask] lastObject];
}
if you need to support iOS 7 or earlier
+ (NSString *) applicationDocumentsDirectory
{
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *basePath = paths.firstObject;
return basePath;
}
This Do...
Add a new element to an array without specifying the index in Bash
... that ARRAY+=('foo') is way different than ARRAY+='foo', which appends the string 'foo' to the entry with the lowest(?) key.
– TheConstructor
May 3 '13 at 13:17
8
...
“open/close” SqlConnection or keep open?
...public SqlConnection GetConnection() { return new SqlConnection(_connectionString); }
– ganders
Jan 23 at 17:12
...
git: diff between file in local repo and origin
... -n1 | cut -d" " -f2`
if [ "$var_remote" = "$var_local" ]; then
echo "Strings are equal." #1
else
echo "Strings are not equal." #0 if you want
fi
Then you did compare local git and remote git last commit number....
...
Node.js Best Practice Exception Handling
...in Error object
TL;DR: It pretty common to see code that throws errors as string or as a custom type – this complicates the error handling logic and the interoperability between modules. Whether you reject a promise, throw exception or emit error – using Node.JS built-in Error object increases ...
Class vs. static method in JavaScript
...: primitive values—which include undefined, null, booleans, numbers, and strings—aren't technically objects because they're low-level language implementations. Booleans, numbers, and strings still interact with the prototype chain as though they were objects, so for the purposes of this answer, ...
How is std::function implemented?
...;
}
};
// examples
int main()
{
int i = 0;
auto fn = [i](std::string const& s) mutable
{
std::cout << ++i << ". " << s << std::endl;
};
fn("first"); // 1. first
fn("second"); ...
“unrecognized selector sent to instance” error in Objective-C
...ction:@selector(xxxButtonClick:)
or (as in my case)
action:NSSelectorFromString([[NSString alloc] initWithFormat:@"%@BtnTui:", name.lowercaseString])
If you place a colon at the end of the string - it will pass the sender. If you do not place the colon at the end of the string it will not, and t...
How to align input forms in HTML
..., in a two-dimensional structure.
[consider what you would do if you had string or numeric values to display instead of input boxes.]
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