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Cannot ping AWS EC2 instance

... Thank you, I like this. I just want to allow the ping, not all. – Chu-Siang Lai Nov 25 '16 at 11:29 ...
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How to make code wait while calling asynchronous calls like Ajax [duplicate]

... Use callbacks. Something like this should work based on your sample code. function someFunc() { callAjaxfunc(function() { console.log('Pass2'); }); } function callAjaxfunc(callback) { //All ajax calls called here o...
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Where to place the 'assets' folder in Android Studio?

...assets folder. It doesn't come auto-created in Android Studio, and almost all the forums in which this is discussed talk about Eclipse. ...
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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 ...
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Disable all gcc warnings

...ontent-policy\"\u003e(content policy)\u003c/a\u003e", allowUrls: true }, onDemand: true, discardSelector: ".discard-answer" ,immediatelyShowMarkdownHelp:true,enableSnippets:true }); ...
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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...
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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[...
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I can not find my.cnf on my windows computer [duplicate]

... To answer your question, on Windows, the my.cnf file may be called my.ini. MySQL looks for it in the following locations (in this order): %PROGRAMDATA%\MySQL\MySQL Server 5.7\my.ini, %PROGRAMDATA%\MySQL\MySQL Server 5.7\my.cnf %WINDIR%\my.ini, %WINDIR%\my.cnf C:\my.ini, C:\my.cnf IN...
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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...
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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)) share | improve this answer | follow | ...