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When to use self over $this?
...on-static and static member variables:
<?php
class X {
private $non_static_member = 1;
private static $static_member = 2;
function __construct() {
echo $this->non_static_member . ' '
. self::$static_member;
}
}
new X();
?>
Here is an example of incorr...
Sort a list by multiple attributes?
... how, you can wrap your criteria (functions) in parenthesis:
s = sorted(my_list, key=lambda i: ( criteria_1(i), criteria_2(i) ), reverse=True)
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Rotating a two-dimensional array in Python
...ke it clear what zip does, it will group elements from each input iterable based on index, or in other words it groups the columns.
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Is there a way to include commas in CSV columns without breaking the formatting?
...
Enclose the field in quotes, e.g.
field1_value,field2_value,"field 3,value",field4, etc...
See wikipedia.
Updated:
To encode a quote, use ", one double quote symbol in a field will be encoded as "", and the whole field will become """". So if you see the follow...
Rails Observer Alternatives for 4.0
...odels you wish to run the after_save in:
class MyModel < ActiveRecord::Base
include MyConcernModule
end
Depending on what you're doing, this might get you close without observers.
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im...
How can I keep Bootstrap popovers alive while being hovered?
...: true,
animation: false
})
.on("mouseenter", function() {
var _this = this;
$(this).popover("show");
$(".popover").on("mouseleave", function() {
$(_this).popover('hide');
});
}).on("mouseleave", function() {
var _this = this;
setTimeout(function() {
if ...
Android – Listen For Incoming SMS Messages
... protected override void OnCreate(Bundle bundle) {
base.OnCreate(bundle);
global::Xamarin.Forms.Forms.Init(this, bundle);
LoadApplication(new App());
// Register your receiver : RegisterReceiver(_receiver, new IntentFilter("a...
How to get all properties values of a JavaScript Object (without knowing the keys)?
...
lodash is unnecessary for this and will bloat your code base
– dman
Apr 17 '18 at 18:23
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UITableView with fixed section headers
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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How to avoid passing parameters everywhere in play2?
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Also, you can't do stuff based on requests in this way, can you.. , for example user specific settings..
– 0fnt
Jul 18 '14 at 12:54
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