大约有 6,261 项符合查询结果（耗时：0.0215秒） [XML]
Enums and Constants. Which to use when?
...t to any other integral type except char like:
enum LongEnum : long {
foo,
bar,
}
You can cast explicitly from and implicitly to the the base type, which is useful in switch-statements. Beware that one can cast any value of the base type to an enum, even if the enum has no member with the...
Iterate over object keys in node.js
... _array is the array of all the keys
// this keyword = secondArg
this.foo;
this.bar();
}, secondArg);
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How to raise a ValueError?
... function: The OP needs/wants a for loop. 1st function: FAIL for contains('foo', 'f').
– John Machin
Dec 9 '10 at 6:56
1
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Troubleshooting “The use statement with non-compound name … has no effect”
...s (fully qualified namespace names containing namespace separator, such as Foo\Bar as opposed to global names that do not, such as FooBar), the leading backslash is unnecessary and not recommended, as import names must be fully qualified, and are not processed relative to the current namespace.
h...
What are the differences between “=” and “
...tree is built. Maybe related to function arguments, it makes sense that in foo(x = a ? b) we'd look for = before parsing rest of the expression.
– Moody_Mudskipper
Jan 10 at 10:34
...
Linux: compute a single hash for a given folder & contents?
... @RichardBronosky - Let us assume we have two files, A and B. A contains "foo" and B contains "bar was here". With your method, we would not be able to separate that from two files C and D, where C contains "foobar" and D contains " was here". By hashing each file individually and then hash all "fi...
LISTAGG in Oracle to return distinct values
... row_number() over (partition by col1, col2 order by col1) as rn
from foo
order by col1,col2
)
where rn = 1
group by col1;
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How to change the name of a Django app?
...tem itself doesn't care about the name. The column DEFAULT stores an OID ('foo_pkey_seq'::regclass), you can change the name of the sequence without breaking that - the OID stays the same.
– Konstantine Kalbazov
May 1 '15 at 14:07
...
Reuse Cucumber steps
...precated, use 'step' to call other steps instead:/path/to/step_definitions/foo_steps.rb:631:in `block in '
". See the cucumber wiki for details.
The gist of the change is that you should now use the step or steps methods.
When /^I make all my stuff shiny$/
step "I polish my first thing"
end
Whe...
What is the difference between children and childNodes in JavaScript?
...ample would be:
let el = document.createElement("div");
el.textContent = "foo";
el.childNodes.length === 1; // Contains a Text node child.
el.children.length === 0; // No Element children.
Most of the time, you want to use .children because generally you don't want to loop over Text or Comment...