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Deleting array elements in JavaScript - delete vs splice
... myArray
[empty, "b", "c", "d"]
myArray.splice(start, deleteCount) actually removes the element, reindexes the array, and changes its length.
> myArray = ['a', 'b', 'c', 'd']
["a", "b", "c", "d"]
> myArray.splice(0, 2)
["a", "b"]
> myArray
["c", "d"]
...
How to conditionally push an item in an observable array?
...rray exposes an indexOf function (wrapper to ko.utils.arrayIndexOf). This allows you to do:
if (myObservableArray.indexOf(itemToAdd) < 0) {
myObservableArray.push(itemToAdd);
}
If the two are not actually a reference to the same object and you want to run custom comparison logic, then you c...
Prevent redirection of Xmlhttprequest
...rwriting some HTTP headers that were set in the original request. Specifically, if the "Accept" header was set to a specific content-type, Firefox fails to include this header when following the redirect (which makes it a tad more difficult to develop fully REST-based web services that use this hea...
How to get commit history for just one branch?
...
Before Git 2.1 (August 2014), this mistake: git log -3master.. would actually show you the last 3 commits of the current branch (here my_experiment), ignoring the master limit (meaning if my_experiment contains only one commit, 3 would still be listed, 2 of them from master)
See commit e3fa568 by...
Can I draw rectangle in XML?
...raw rectangle in XML.
I know how to draw using drawRect method programmatically.
6 Answers
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Set Viewbag before Redirect
Is it possible to set the ViewBag before I call a redirection?
5 Answers
5
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In JavaScript, is returning out of a switch statement considered a better practice than using break?
...
A break will allow you continue processing in the function. Just returning out of the switch is fine if that's all you want to do in the function.
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Reflection generic get field value
...field.get(objectInstance);
Another way, which is sometimes prefered, is calling the getter dynamically. example code:
public static Object runGetter(Field field, BaseValidationObject o)
{
// MZ: Find the correct method
for (Method method : o.getMethods())
{
if ((method.getName...
How to find a table having a specific column in postgresql
...ss query missed two (of 150) tables. The information_schema query captured all of the tables. I'll have to dig around to see why two tables fell outside of the join. In any event thanks for the info!
– Thomas Altfather Good
Aug 26 '19 at 15:30
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How do I wrap link_to around some html ruby code?
...wered Jul 6 '09 at 10:44
Barry GallagherBarry Gallagher
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