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What is in your Mathematica tool bag? [closed]
... helper function is useful for creating such cells:
evaluatableCell[label_String, evaluationFunction_] :=
( CellPrint[
TextCell[
""
, "Program"
, Evaluatable -> True
, CellEvaluationFunction -> (evaluationFunction[#]&)
, CellFrameLabels -> {{None...
How to avoid null checking in Java?
...dition> is a boolean expression and <object> is an object whose toString() method's output will be included in the error.
An assert statement throws an Error (AssertionError) if the condition is not true. By default, Java ignores assertions. You can enable assertions by passing the optio...
node.js database [closed]
...
By default, node_redis will return JavaScript strings for all commands. To get buffers instead, create a client with createClient(port, host, { return_buffers: true });
– Matt Ranney
Sep 20 '11 at 6:40
...
Deleting Objects in JavaScript
... of them would cause a crash. To make them all turn null would mean having extra work when deleting or extra memory for each object.)
Since Javascript is garbage collected, you don't need to delete objects themselves - they will be removed when there is no way to refer to them anymore.
It can be ...
Can a java file have more than one class?
...s to be a nested class.
public class first {
public static void main(String[] args) {
// TODO Auto-generated method stub
}
public class demo1
{
public class demo2
{
}
}
}
...
How do I Sort a Multidimensional Array in PHP [duplicate]
...set contains columns that cannot be compared in a "dumb" manner (e.g. date strings) you can also specify how to convert these items to a value that can be directly compared (e.g. a DateTime instance).
It's associative if you want: this code takes care of sorting items, but you select the actual sort...
Default value of a type at Runtime [duplicate]
...
@Shimmy Why would this fail for string? The default value of string is null.
– Mike Zboray
Apr 19 '15 at 3:17
3
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ITunes review URL and iOS 7 (ask user to rate our app) AppStore show a blank page
....apple.com/app/id353372460
Notice the id in front of the number ... that string is is id353372460, not just 353372460
For anything pre iOS7 the 'old' URL needs to be used, only those could get you straight to the review page. You should also take note that these calls will only work on devices. R...
The new keyword “auto”; When should it be used to declare a variable type? [duplicate]
Have we (as a community) had enough experience to determine when and/or whether auto is being abused?
6 Answers
...
Redirect parent window from an iframe action
...ttribute is abscent all actions are allowed. If it is present and an empty string, all actions are denied.
– Marcus Harrison
Jul 3 '17 at 16:03
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