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Map vs Object in JavaScript
... stored at a key. Because of this, Objects have been used as Maps
historically; however, there are important differences between Objects
and Maps that make using a Map better.
An Object has a prototype, so there are default keys in the map.
However, this can be bypassed using map = Object...
About “*.d.ts” in TypeScript
...ated from the js file, and if the js file knows nothing about d.ts. How to call the functions from d.ts in other ts files without the js file? I'm puzzled......
– user3221822
Jan 21 '14 at 1:51
...
How can I install an older version of a package via NuGet?
...ecause 'twitterizer 2.4.0.26532' depends on it.
– Nebide Yildiz
Apr 19 '12 at 5:41
9
...
Why does sizeof(x++) not increment x?
...of the result matters.
short func(short x) { // this function never gets called !!
printf("%d", x); // this print never happens
return x;
}
int main() {
printf("%d", sizeof(func(3))); // all that matters to sizeof is the
// return type of the functio...
Java using enum with switch statement
...you receive (this is the pre-Java 5 approach)
Switch on either a specified id value (as described by heneryville) or the ordinal value of the enum values; i.e. guideView.GUIDE_VIEW_SEVEN_DAY.ordinal()
Determine the enum value represented by the int value and then switch on the enum value.
enum Guid...
Why java.util.Optional is not Serializable, how to serialize the object with such fields
...e of functions when a return value might be absent. The intent is that the caller immediately check the Optional and extract the actual value if it's present. If the value is absent, the caller can substitute a default value, throw an exception, or apply some other policy. This is typically done by ...
Generate an integer that is not among four billion given ones
...
Statistically informed algorithms solve this problem using fewer passes than deterministic approaches.
If very large integers are allowed then one can generate a number that is likely to be unique in O(1) time. A pseudo-random 128-...
GROUP BY with MAX(DATE) [duplicate]
...t t.train, d.dest, max(time) from TrainTable t join Destination d on t.destid = d.id group by t.train, d.dest
– not_ur_avg_cookie
Jul 12 '18 at 20:00
...
How to input a regex in string.replace?
...ed (i.e. with a backslash placed in front - and the rules are different inside and outside character classes.) There is an excellent online tutorial at: www.regular-expressions.info. The time you spend there will pay for itself many times over. Happy regexing!
...
How to get the request parameters in Symfony 2?
...;get('name'); but it is also not working.
– Abdul Hamid
Mar 21 '12 at 11:55
7
How do I get the pa...