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Self-references in object literals / initializers
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Well, the only thing that I can tell you about are getter:
var foo = {
a: 5,
b: 6,
get c() {
return this.a + this.b;
}
}
console.log(foo.c) // 11
This is a syntactic extension introduced by the ECMAScript 5th Edition Specification, the syntax is supported by m...
In what cases do I use malloc and/or new?
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With regard to calling delete foo when you should call delete []foo, some compilers will fix this automagically for you and not leak and other will only delete the first entry and leak. I had a few of these in some code and valgrind will find them for you...
How can I access “static” class variables within class methods in Python?
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Instead of bar use self.bar or Foo.bar. Assigning to Foo.bar will create a static variable, and assigning to self.bar will create an instance variable.
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Simplest/Cleanest way to implement singleton in JavaScript?
... not look very clean or JS like. Other soultions that end up with a = new Foo(); b = new Foo(); a === b //true
– Matthias
Nov 7 '13 at 13:24
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How to initialize a two-dimensional array in Python?
... for j in range (0, 10): } with a list /
new.append(foo) / comprehension /
twod_list.append(new) /
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A variable modified inside a while loop is not remembered
In the following program, if I set the variable $foo to the value 1 inside the first if statement, it works in the sense that its value is remembered after the if statement. However, when I set the same variable to the value 2 inside an if which is inside a while statement, it's forgotten af...
Count immediate child div elements using jQuery
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$("#foo > div").length
Direct children of the element with the id 'foo' which are divs. Then retrieving the size of the wrapped set produced.
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Does Java support default parameter values?
...l ways to simulate default parameters in Java:
Method overloading.
void foo(String a, Integer b) {
//...
}
void foo(String a) {
foo(a, 0); // here, 0 is a default value for b
}
foo("a", 2);
foo("a");
One of the limitations of this approach is that it doesn't work if you have two optio...
How does the extend() function work in jQuery?
... precise in explaining how extend works, so I ran a little test:
var a = {foo: 1, bar: 1};
var b = {foo: 2, baz: 2};
var c = {foo: 3};
var r = jQuery.extend(a,b,c);
console.log("A: Foo=" + a.foo + " Bar=" + a.bar + " Baz=" + a.baz);
console.log("B: Foo=" + b.foo + " Bar=" + b.bar + " Baz=" + b.baz)...
diff current working copy of a file with another branch's committed copy
I have a repo with file foo in the master branch. I switched to bar branch and made some changes to foo . How can I now run a git diff between this copy (which isn't committed yet) and the copy of the master branch?
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