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How do I remove objects from a JavaScript associative array?
...rray, if you do not want to create a sparsely populated array - and you usually don't - then you should use Array#splice or Array#pop.
Note that the delete operator in JavaScript does not directly free memory. Its purpose is to remove properties from objects. Of course, if a property being deleted ...
Rails migration for change column
...). If it starts with "add" or "remove" then the migration will be automatically populated with code to add or remove columns, which saves you writing that code yourself.
– Alex Korban
Oct 26 '11 at 19:35
...
What is the difference between persist() and merge() in JPA and Hibernate?
...these
other entities are annotated with the
cascade=PERSIST or cascade=ALL
annotation element value or specified
with the equivalent XML descriptor
element.
If X is a removed entity,
it becomes managed.
If X is a
detached object, the
EntityExistsException may be thrown
when the...
Disable all gcc warnings
...ontent-policy\"\u003e(content policy)\u003c/a\u003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true,enableSnippets:true
});
...
Convert data.frame column format from character to factor
...e to the world of R.
mtcars #look at this built in data set
str(mtcars) #allows you to see the classes of the variables (all numeric)
#one approach it to index with the $ sign and the as.factor function
mtcars$am <- as.factor(mtcars$am)
#another approach
mtcars[, 'cyl'] <- as.factor(mtcars[...
Visual Studio Copy Project
...rget to delete svn files if you have any (i did!) --> weblogs.asp.net/jgalloway/archive/2007/02/24/…
– qbantek
Jan 16 '12 at 17:14
51
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How to frame two for loops in list comprehension python
...ehension. (Perfectly matches the 79 character limit too (without the list call))
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git replacing LF with CRLF
...ons transparently. And it does!
Bad news: value needs to be configured manually.
Good news: it should only be done ONE time per git installation (per project setting is also possible).
How autocrlf works:
core.autocrlf=true: core.autocrlf=input: core.autocrlf=false:
...
With Mercurial, how can I “compress” a series of changesets into one before pushing?
... out the hg wiki on the rebase command. Since this question is the 3rd overall search result and the first on stackoverflow I thought that info might be useful.
– a.peganz
Oct 2 '15 at 13:33
...
How to change Status Bar text color in iOS
...lightContent
}
Swift 5 and SwiftUI
For SwiftUI create a new swift file called HostingController.swift
import Foundation
import UIKit
import SwiftUI
class HostingController: UIHostingController<ContentView> {
override var preferredStatusBarStyle: UIStatusBarStyle {
return .ligh...