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What is the correct answer for cout
... @ChristopherSmith Where do you see a sequence point between the two c in foo(foo(bar(c)), c)? There's a sequence point when functions are called, and when they return, but there's no function call required between the evaluations of the two c.
– James Kanze
...
Undo scaffolding in Rails
...db:rollback
You can create scaffolding using:
rails generate scaffold MyFoo
(or similar), and you can destroy/undo it using
rails destroy scaffold MyFoo
That will delete all the files created by generate, but not any additional changes you may have made manually.
...
How to enter quotes in a Java string?
...le name. Also, your code is needlessly complex. This would do fine: String foo = quotes + "ROM" + quotes;. No need for all those extra "".
– Duncan Jones
Mar 18 '15 at 8:55
ad...
How can I declare optional function parameters in Javascript? [duplicate]
...alue of 0. If you want another default value just change that to b = b || 'foo'.
– Tigraine
Nov 4 '15 at 9:58
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show 6 more comments
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Why C# fails to compare two object types with each other but VB doesn't?
.... For example, string provides ==(string, string):
string x = new string("foo".ToCharArray());
string y = new string("foo".ToCharArray());
Console.WriteLine(x == y); // True
Console.WriteLine((object) x == (object) y); // False
Here the first comparison is using the overloaded operator, but the s...
When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
... @Override
public String getEndpointUri() {
return "activemq:foo.bar";
}
}
class Consumer extends UntypedConsumerActor{
@Override
public String getEndpointUri() {
return "activemq:foo.bar";
}
@Override
public void onReceive(Object message) throws Exce...
How do I make a list of data frames?
...
Instead of lapply(foo, get), just use mget(foo)
– Gregor Thomas
Nov 21 '17 at 18:32
add a comment
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Best practices for reducing Garbage Collector activity in Javascript
...ys into lookup tables and dynamic DOM node IDs. For example, lookupTable['foo-' + x] and document.getElementById('foo-' + x) both involve an allocation since there is a string concatenation. Often you can attach keys to long-lived objects instead of re-concatenating. Depending on the browsers you...
What are the typical reasons Javascript developed on Firefox fails on IE? [closed]
...head when split is first called.)
Commas before the end of objects: e.g. {'foo': 'bar',} aren't allowed in IE.
Element-specific issues:
Getting the document of an IFrame:
Firefox and IE8+: IFrame.contentDocument (IE started supporting this from version 8.)
IE: IFrame.contentWindow.document
(...
What is Mocking?
... the implementation details of your class/functions.
Simple example:
class Foo {
func add (num1: Int, num2: Int) -> Int { // Line A
return num1 + num2 // Line B
}
}
let unit = Foo() // unit under test
assertEqual(unit.add(1,5),6)
As you can see, I'm not testing LineA ie I'm not...