大约有 30,000 项符合查询结果（耗时：0.0415秒） [XML]
NSAttributedString add text alignment
...aphStyleCreate(settings, settingsCount);
NSDictionary *attributes = @{(__bridge id)kCTParagraphStyleAttributeName : (__bridge id)paragraphRef};
NSAttributedString *attributedString = [[NSAttributedString alloc] initWithString:@"Hello World" attributes:attributes];
...
How can I tell gcc not to inline a function?
...ects, there are
optimizations other than inlining that
causes function calls to be optimized
away, although the function call is
live. To keep such calls from being
optimized away, put
asm ("");
Use it like this:
void __attribute__ ((noinline)) foo()
{
...
}
...
How to create streams from string in Node.Js?
...ng"])
readable.on("data", (chunk) => {
console.log(chunk) // will be called once with `"input string"`
})
Note that at least between 10.17 and 12.3, a string is itself a iterable, so Readable.from("input string") will work, but emit one event per character. Readable.from(["input string"]) wi...
How to do a JUnit assert on a message in a logger
I have some code-under-test that calls on a Java logger to report its status.
In the JUnit test code, I would like to verify that the correct log entry was made in this logger. Something along the following lines:
...
Simulate CREATE DATABASE IF NOT EXISTS for PostgreSQL?
...nt to be executed.
Workaround from the shell
With \gexec you only need to call psql once:
echo "SELECT 'CREATE DATABASE mydb' WHERE NOT EXISTS (SELECT FROM pg_database WHERE datname = 'mydb')\gexec" | psql
You may need more psql options for your connection; role, port, password, ... See:
Run batc...
How to create a bash script to check the SSH connection?
...
ssh -q -o "BatchMode=yes" -i /home/sicmapp/.ssh/id_rsa <ID>@<Servername>.<domain> "echo 2>&1" && echo $host SSH_OK || echo $host SSH_NOK
share
|
...
map function for objects (instead of arrays)
...because it isn't doing a return - it's abusing map as if it were a forEach call. If he actually did return myObject[value] * 2 then the result would be an array containing the original values doubled, instead of an object containing the original keys with doubled values, the latter clearly being wh...
What are commit-ish and tree-ish in Git?
...he Short Answer (TL;DR)
Here's a complete list of commit-ish and tree-ish identifiers (from the Git
revisions documentation):
----------------------------------------------------------------------
| Commit-ish/Tree-ish | Examples
-----------------------------------------------...
What is the purpose of the word 'self'?
... way that makes the instance to which the method belongs be passed automatically, but not received automatically: the first parameter of methods is the instance the method is called on. That makes methods entirely the same as functions, and leaves the actual name to use up to you (although self is t...
Generic TryParse
...ndler<T>(string value, out T result);
Then it's simply a matter of calling thusly:
var value = TryParse<int>("123", int.TryParse);
var value2 = TryParse<decimal>("123.123", decimal.TryParse);
share
...