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Why is it important to override GetHashCode when Equals method is overridden?
...n result;
}
}
As you can see it just tries to guess a good hash code based on all the fields in the class, but since you know your object's domain or value ranges you could still provide a better one.
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Is there any way to call a function periodically in JavaScript?
...un multiple tasks on different intervals.
// Timer with 1000ms (1 second) base interval resolution.
var timer = new TaskTimer(1000)
// Add task(s) based on tick intervals.
timer.addTask({
name: 'job1', // unique name of the task
tickInterval: 5, // run every 5 ticks (5 x interval ...
SQLAlchemy: cascade delete
...ld object from parent.children, should that object be deleted from the database, or should only it's reference to the parent be removed (ie. set parentid column to null, instead of deleting the row)
– Steven
Feb 8 '16 at 13:04
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Update multiple rows in same query using PostgreSQL
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Based on the solution of @Roman, you can set multiple values:
update users as u set -- postgres FTW
email = u2.email,
first_name = u2.first_name,
last_name = u2.last_name
from (values
(1, 'hollis@weimann.biz', 'Holli...
How to show SQL queries run in the Rails console?
...r record.associated_things ) in the console, how can I see the actual database queries being run so I can gain more understanding of what is happening?
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Switch statement for string matching in JavaScript
...re in your match, you don't need a substring match, and could do:
switch (base_url_string) {
case "xxx.local":
// Blah
break;
case "xxx.dev.yyy.com":
// Blah
break;
}
...but again, that only works if that's the complete string you're matching. It would fail...
How to make JavaScript execute after page load?
...t this stage you could programmatically optimize loading of images and css based on user device or bandwidth speed.
Executes after DOM is loaded (before img and css):
document.addEventListener("DOMContentLoaded", function(){
//....
});
Note: Synchronous JavaScript pauses parsing of the D...
Iterate through the fields of a struct in Go
...o a map[string]int
package main
import (
"fmt"
"reflect"
)
type BaseStats struct {
Hp int
HpMax int
Mp int
MpMax int
Strength int
Speed int
Intelligence int
}
type Stats struct {
Base map[string]int
Modifier...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
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Here's my implementation in Swift 5 for vertical cell-based paging:
override func targetContentOffset(forProposedContentOffset proposedContentOffset: CGPoint, withScrollingVelocity velocity: CGPoint) -> CGPoint {
guard let collectionView = self.collectionView else {
...
Has anyone actually implemented a Fibonacci-Heap efficiently?
...years back, but it was several orders of magnitude slower than using array-based BinHeaps.
4 Answers
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