大约有 40,000 项符合查询结果（耗时：0.0361秒） [XML]
How efficient is locking an unlocked mutex? What is the cost of a mutex?
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123
I have the choice in between either having a bunch of mutexes or a single one for an object...
Where to put Gradle configuration (i.e. credentials) that should not be committed?
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~/.gradle/gradle.properties:
mavenUser=admin
mavenPassword=admin123
build.gradle:
...
authentication(userName: mavenUser, password: mavenPassword)
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How to make connection to Postgres via Node.js
... single user name from id:
db.one('SELECT name FROM users WHERE id = $1', [123])
.then(user => {
console.log(user.name); // print user name;
})
.catch(error => {
console.log(error); // print the error;
});
// alternative - new ES7 syntax with 'await':
// await ...
How can I send large messages with Kafka (over 15MB)?
...roperties. Now also bigger messages work :).
– Sonson123
Feb 3 '14 at 15:37
3
Are there any known...
How do I replace a git submodule with another repo?
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123
If the location (URL) of the submodule has changed, then you can simply:
Modify your .gitmod...
Differences between unique_ptr and shared_ptr [duplicate]
...ou pass it by value if you cannot copy it?
– splinter123
Jun 3 '16 at 22:00
11
@splinter123: By m...
How to round a number to n decimal places in Java
...f.setRoundingMode(RoundingMode.CEILING);
for (Number n : Arrays.asList(12, 123.12345, 0.23, 0.1, 2341234.212431324)) {
Double d = n.doubleValue();
System.out.println(df.format(d));
}
gives the output:
12
123.1235
0.23
0.1
2341234.2125
EDIT: The original answer does not address the acc...
Add st, nd, rd and th (ordinal) suffix to a number
...etDaySuffix(num)
{
var array = ("" + num).split("").reverse(); // E.g. 123 = array("3","2","1")
if (array[1] != "1") { // Number is in the teens
switch (array[0]) {
case "1": return "st";
case "2": return "nd";
case "3": return "rd";
}
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How to re-open an issue in github?
...rence the old one (by mentioning its number preceded by a hash sign, e.g. #123).
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What is the difference between an interface and abstract class?
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123
i think this is the best answer because it highlights all of the key differences. an example's not really necessary.
...