大约有 6,261 项符合查询结果（耗时：0.0212秒） [XML]
Android - how do I investigate an ANR?
...find "waiting to lock"
example : waiting to lock <0xblahblah> (a com.foo.A) held by threadid=74
You can notice that "tid=74" hold a task now. So go to tid=74
tid=74 maybe SUSPENDED state! find main reason!
trace does not always contain "waiting to lock". in this case it is hard to find main...
What is the difference between '>' and a space in CSS selectors?
...t;/div>
but it doesn't match <div class='card'>....<div class='foo'> ... <div class='name'>xxx</div>..</div>....</div>
div.card div.name matches both.
That is, the > selector makes sure that the selected element on the right side
of the > is an immidiat...
Where to define custom error types in Ruby and/or Rails?
...
in rails you can make app/errors directory
# app/errors/foo_error.rb
class FooError < StandardError; end
restart spring/server and it should pick it up
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Why the switch statement cannot be applied on strings?
...eturn eFred;
if (inString == "Barney") return eBarney;
...
}
void foo() {
switch (hashit(stringValue)) {
case eFred:
...
case eBarney:
...
}
}
There are a bunch of obvious optimizations that pretty much follow what the C compiler would do with a switch stat...
setup.py examples?
...al example
from setuptools import setup, find_packages
setup(
name="foo",
version="1.0",
packages=find_packages(),
)
More info in docs
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Why use double indirection? or Why use pointers to pointers?
... word = malloc(4 * sizeof *word); // assume it worked
strcpy(word, "foo");
sentence = malloc(4 * sizeof *sentence); // assume it worked
sentence[0] = word;
sentence[1] = word;
sentence[2] = word;
sentence[3] = NULL;
monologue = malloc(4 * sizeof *monologue); // assum...
How can I check that a form field is prefilled correctly using capybara?
...lue
end
end
my_page = MyPage.new
expect(my_page).to have_secret_value "foo"
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Using msbuild to execute a File System Publish Profile
...t:restore;build /p:DeployOnBuild=true /p:PublishProfile=FolderProfile
I (foolishly) thought that it would make no difference, but as soon as I used the DeployOnBuild switch it correctly picked up the profile.
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How to add an extra source directory for maven to compile and include in the build jar?
...ng some (generated or no) source code in target/a, target/generated-source/foo will be compiled and added in the outputDirectory : target/classes.
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Handling warning for possible multiple enumeration of IEnumerable
... the redundant Any and First calls and go with:
public List<object> Foo(IEnumerable<object> objects)
{
if (objects == null)
throw new ArgumentNullException("objects");
var first = objects.FirstOrDefault();
if (first == null)
throw new ArgumentException(
...