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Why does typeof NaN return 'number'?
...al) is true, return "undefined".
Let val be GetValue(val).
Return a String determined by Type(val) according to Table 20.
Table 20 — typeof Operator Results
==================================================================
| Type of val | ...
Installing Java on OS X 10.9 (Mavericks)
...sPath</key>
...
<key>JVMVersion</key>
<string>1.8*</string>
<key>MainClass</key>
<string>com.intellij.idea.Main</string>
<key>Properties</key>
<dict>
...
Using Emacs to recursively find and replace in text files not already open
...rmalade (using M-x package-list-packages)
First run M-x rgrep to find the string you're looking for.
You'll be able to specify file types/pattern and the folder to recurse.
Next you'll need to run wgrep start it with C-s C-p.
Wgrep will let you edit the rgrep results, so set a region on the st...
Remove an onclick listener
...an ImageView.isEnabled();
Another option is to use setContentDescription(String string) and
String getContentDescription() to determine the status of a view.
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What does in XML mean?
...DATA stands for Character Data and it means that the data in between these strings includes data that could be interpreted as XML markup, but should not be.
The key differences between CDATA and comments are:
As Richard points out, CDATA is still part of the document, while a comment is not.
In C...
LEFT OUTER joins in Rails 3
... a named association, it will perform an INNER JOIN. You'll have to pass a string representing your LEFT OUTER JOIN.
From the documentation:
:joins - Either an SQL fragment for additional joins like "LEFT JOIN
comments ON comments.post_id = id" (rarely needed), named associations
in the sam...
How to give ASP.NET access to a private key in a certificate in the certificate store?
...ificateManager
{
public static X509Certificate2 GetCertificate(string caller)
{
AsymmetricKeyParameter caPrivateKey = null;
X509Certificate2 clientCert;
X509Certificate2 serverCert;
clientCert = GetCertificateIfExist("CN=127.0.0.1"...
Thymeleaf: how to use conditionals to dynamically add/remove a CSS class
... if i dont have boolean variable i use the following:
<li th:class="${#strings.contains(content.language,'CZ')} ? active : ''">
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Can't use Swift classes inside Objective-C
...import Foundation
@objc
class SwiftClass:NSObject {
private var _stringValue: String
var stringValue: String {
get {
print("SwiftClass get stringValue")
return _stringValue
}
set {
print("SwiftClass set stringValue = \(newValu...
Rails: How do I create a default value for attributes in Rails activerecord's model? [duplicate]
... default option for the column in the migration
....
add_column :status, :string, :default => "P"
....
OR
You can use a callback, before_save
class Task < ActiveRecord::Base
before_save :default_values
def default_values
self.status ||= 'P' # note self.status = 'P' if self.status....