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Why `null >= 0 && null
...
I had the same problem !!.
Currently my only solution is to separate.
var a = null;
var b = undefined;
if (a===0||a>0){ } //return false !work!
if (b===0||b>0){ } //return false !work!
//but
if (a>=0){ } //return true !
...
How to determine equality for two JavaScript objects?
...are not to be considered part of the object value. For example,
function MyClass(a, b)
{
var c;
this.getCLazy = function() {
if (c === undefined) c = a * b // imagine * is really expensive
return c;
}
}
In this above case, c is not really important to determin...
Python assigning multiple variables to same value? list behavior
..._(0, 1).) So, it's not really rebinding anything at all. It's like calling my_object.set_something(1). Sure, likely the object is rebinding an instance attribute in order to implement this method, but that's not what's important; what's important is that you're not assigning anything, you're just mu...
When to use generic methods and when to use wild-card?
... no other class, even if they implement T too. You wouldn't be able to use my previous example but you could do:
List<Apple> basket = new ArrayList<Apple>();
basket.add(new Apple());
basket.add(new Apple());
basket.add(new Apple());
List<Fruit> fridge = new ArrayList<Fruit>(...
Differences between action and actionListener
...al, below works as good.
public void ajaxListener() {
// ...
}
But in MyFaces, it would throw a MethodNotFoundException. Below works in both JSF implementations when you want to omit the argument.
<h:commandXxx ...>
<f:ajax execute="@form" listener="#{bean.ajaxListener()}" render="...
Rails params explained?
... toasterlovin, it sounds like you did not read the second sentence of my answer or look at the first example.
– David Grayson
Nov 27 '13 at 0:21
1
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What does the slash mean in help() output?
...
I asked this question myself. :) Found out that / was originally proposed by Guido in here.
Alternative proposal: how about using '/' ? It's kind of the opposite
of '*' which means "keyword argument", and '/' is not a new character.
Then h...
How does grep run so fast?
..., it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though)
2 Answers...
Why does Go have a “goto” statement
...in a single function. (And Thomas Ahle's proposal is even more readable to my eye.)
– joel.neely
Jun 28 '16 at 11:14
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show 4 more comments
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Wait until file is unlocked in .NET
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Is it really necessary to read a byte? In my experience if you have opened the file for read access, you have it, don't have to test for it. Although with the design here you aren't forcing exclusive access so it's even possible you may be able to read the first byt...