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nodejs require inside TypeScript file
... exist at runtime using the declare syntax:
declare function require(name:string);
var sampleModule = require('modulename');
On my system, this compiles just fine.
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What is the correct value for the disabled attribute?
...lse value.
If the attribute is present, its value must either be the empty string or a value that is an ASCII case-insensitive match for the attribute's canonical name, with no leading or trailing whitespace.
Conclusion:
The following are valid, equivalent and true:
<input type="text" disabled /...
Difference between Statement and PreparedStatement
...name, email, birthdate, photo) VALUES (?, ?, ?, ?)");
preparedStatement.setString(1, person.getName());
preparedStatement.setString(2, person.getEmail());
preparedStatement.setTimestamp(3, new Timestamp(person.getBirthdate().getTime()));
preparedStatement.setBinaryStream(4, person.getPhoto());
prepa...
mongodb group values by multiple fields
...takes an "pipeline" expression as an argument instead of the "localFields" and "foreignFields" options. This then allows a "self-join" with another pipeline expression, in which we can apply $limit in order to return the "top-n" results.
db.books.aggregate([
{ "$group": {
"_id": "$addr",
"...
How to establish a connection pool in JDBC?
... Object, reducing the Garbage collection load.
« Pooling [ Object pool, String Constant Pool, Thread Pool, Connection pool]
String Constant pool
String literal pool maintains only one copy of each distinct string value. which must be immutable.
When the intern method is invoked, it check objec...
git: switch branch without detaching head
...eckout localname
git push origin
For convenience, you may use the same string for localname & branchname
When you checked out origin/branchname you weren't really checking out a branch.
origin/branchname is a "remote" name, and you can get a list of them with
branch -a
If you have colo...
Didn't Java once have a Pair class? [duplicate]
...
Pair<String, String> pair = new ImmutablePair<String, String>(key, value);
– user77115
Nov 15 '12 at 10:38
...
Generate a random double in a range
...ort java.util.Random;
public class MyClass {
public static void main(String args[]) {
Double min = 0.0; // Set To Your Desired Min Value
Double max = 10.0; // Set To Your Desired Max Value
double x = (Math.random() * ((max - min) + 1)) + min; // This Will Creat...
How do I check CPU and Memory Usage in Java?
... Runtime.getRuntime();
NumberFormat format = NumberFormat.getInstance();
StringBuilder sb = new StringBuilder();
long maxMemory = runtime.maxMemory();
long allocatedMemory = runtime.totalMemory();
long freeMemory = runtime.freeMemory();
sb.append("free memory: " + format.format(freeMemory / 1024)...
Iterating through a Collection, avoiding ConcurrentModificationException when removing objects in a
...
Iterator.remove() is safe, you can use it like this:
List<String> list = new ArrayList<>();
// This is a clever way to create the iterator and call iterator.hasNext() like
// you would do in a while-loop. It would be the same as doing:
// Iterator<String> iterato...