大约有 15,482 项符合查询结果（耗时：0.0219秒） [XML]
Load local JSON file into variable
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TLDR; the caching hit him in unit tests and so he gives a helper function to avoid caching (ping @nono).
– Ehvince
Mar 18 '18 at 23:41
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Generic method multiple (OR) type constraint
...ible. You can, however, define overloads for specific types:
public void test(string a, string arg);
public void test(string a, Exception arg);
If those are part of a generic class, they will be preferred over the generic version of the method.
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How to override equals method in Java
...lasses.
There is no need for the class to provide a “logical equality” test. For example, java.util.regex.Pattern could have overridden equals to check whether two Pattern instances represented exactly the same regular expression, but the designers didn’t think that clients would need or want ...
How do I force Postgres to use a particular index?
... a particular query plan for all time.
As a very blunt hammer, useful for testing, you can use the enable_seqscan and enable_indexscan parameters. See:
Examining index usage
enable_ parameters
These are not suitable for ongoing production use. If you have issues with query plan choice, you shou...
How can I list ALL DNS records?
...$2"; shift 2 ;;
*) break ;;
esac; done
DOM="$1"; shift
TYPE="${1:-any}"
test "${NS:-}" || NS=$(dig +short SOA "$DOM" | awk '{print $1}')
test "$NS" && NS="@$NS"
if test "$EXTENDED"; then
dig +nocmd $NS "$DOM" +noall +answer "$TYPE"
wild_ips=$(dig +short "$NS" "*.$DOM" "$TYPE" | tr '...
How to grep a text file which contains some binary data?
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You could run the data file through cat -v, e.g
$ cat -v tmp/test.log | grep re
line1 re ^@^M
line3 re^M
which could be then further post-processed to remove the junk; this is most analogous to your query about using tr for the task.
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Batch equivalent of Bash backticks
...scripts with the for /f command:
for /f "usebackq tokens=*" %%a in (`echo Test`) do my_command %%a
Yeah, it's kinda non-obvious (to say the least), but it's what's there.
See for /? for the gory details.
Sidenote: I thought that to use "echo" inside the backticks in a "for /f" command would nee...
Is it possible to get all arguments of a function as single object inside that function?
... an array-like object (not an actual array). Example function...
function testArguments () // <-- notice no arguments specified
{
console.log(arguments); // outputs the arguments to the console
var htmlOutput = "";
for (var i=0; i < arguments.length; i++) {
htmlOutput += '...
iTextSharp - Sending in-memory pdf in an email attachment
...emoryStream.Position = 0;
mm.Attachments.Add(new Attachment(memoryStream, "test.pdf"));
If my memory serves me correctly, this solved a similar problem in a previous project.
See http://forums.asp.net/t/1093198.aspx
share...
How is mime type of an uploaded file determined by browser?
...r upload, it looks at the first buffer of data it receives and then runs a test on it. These tests try to determine if the file is a known mime type or not, and if known mime type it will simply further test it for which known mime type and take action accordingly. I think IE tries to do this first ...