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AngularJS : How to watch service variables?
... $watch.
In the service:
factory('aService', function() {
var observerCallbacks = [];
//register an observer
this.registerObserverCallback = function(callback){
observerCallbacks.push(callback);
};
//call this when you know 'foo' has been changed
var notifyObservers = function(){...
Building big, immutable objects without using constructors having long parameter lists
...of course completely wrong.
The trick is that only the build() method actually creates a Foo (hence you Foo can be immutable).
FooFactory.create(), whereXXX(..) and withXXX(..) all create "something else".
That something else may be a FooFactory, here's one way to do it....
You FooFactory would ...
jquery selector for id starts with specific text [duplicate]
...re 'attribute' ends with 'Dialog'
$("[attribute$='Dialog']");
// Selects all divs where attribute is NOT equal to value
$("div[attribute!='value']");
// Select all elements that have an attribute whose value is like
$("[attribute*='value']");
// Select all elements that have an attribute w...
Calling clojure from java
Most of the top google hits for "calling clojure from java" are outdated and recommend using clojure.lang.RT to compile the source code. Could you help with a clear explanation of how to call Clojure from Java assuming you have already built a jar from the Clojure project and included it in the cl...
Remove the last line from a file in Bash
...e, while $ means "the last line in the file". When specifying a location (called "range" in sed lingo) before a command, that command is only applied to the specified location. So, this command explicitly says "in the range of the last line in a file, delete it". Quite slick and straight to the poin...
Vim: What's the difference between let and set?
...iendly interface specialized for options
E.g.
:verbose set
to display all options in effect.
:set tw=40
Will work as a shorthand for set textwidth=40
:set wrap&
Will set the default value for option wrap
:set nowrap
Will unset the option
:set wrap!
Will toggle the option
Most i...
Find and replace strings in vim on multiple lines
...
@TayyarR The range covers the lines (vertically, so to speak), while the 'g' flag determines whether only one or all matches within the line (so horizontally) are replaced.
– Ingo Karkat
Feb 15 at 20:58
...
Create subdomains on the fly with .htaccess (PHP)
...ches[1])) {
$subdomain = $matches[1];
}
I have used regex here to to allow for people hitting your site via www.subdomain.example.org or subdomain.example.org.
If you never anticipate having to deal with www. (or other subdomains) then you could simply use a substring like so:
$subdomain = s...
Remove substring from the string
...
@bcackerman -- delete wouldn't work, since it deletes all the characters you pass in: 'hello world'.delete('hello') #=> ' wrd'
– rusty
Jun 2 '15 at 14:55
...
Inheriting class methods from modules / mixins in Ruby
...ors of the class. You can look at the ancestors of any class or module by calling its ancestors method:
module M
def foo; "foo"; end
end
class C
include M
def bar; "bar"; end
end
C.ancestors
#=> [C, M, Object, Kernel, BasicObject]
# ^ look, it's right here!
When you call a metho...