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What exactly does Perl's “bless” do?
...to a hash (most common case), to an array (not so common), to a scalar (usually this indicates an inside-out object), to a regular expression, subroutine or TYPEGLOB (see the book Object Oriented Perl: A Comprehensive Guide to Concepts and Programming Techniques by Damian Conway for useful examples)...
CSS file not opening in Visual Studio 2010 SP1?
...and found that by going to the Tools -> Extension Manager -> Online Gallery and search for/install the "Web Standards Update for Microsoft Visual Studio 2010 sp1" I was able to open CSS files again.
And it worked for me.
...
Ansible: Set variable to file content
...les, not remote files.
Here's a complete example from the docs:
- hosts: all
vars:
contents: "{{ lookup('file', '/etc/foo.txt') }}"
tasks:
- debug: msg="the value of foo.txt is {{ contents }}"
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How do I edit an existing tag message in git?
...;tag-name> [commit]
Whole story:
Building on Sungram's answer (originally proposed as an edit):
1. Accepted answer
This is an improvement over Andy and Eric Hu's answers.
Their answers will create a new tag object that references the old tag object and both are going to have the same name. ...
Create a “with” block on several context managers? [duplicate]
...rite:
with A() as X, B() as Y, C() as Z:
do_something()
This is normally the best method to use, but if you have an unknown-length list of context managers you'll need one of the below methods.
In Python 3.3, you can enter an unknown-length list of context managers by using contextlib.Exit...
Why did Bootstrap 3 switch to box-sizing: border-box?
...box, making for easier sizing options and an enhanced grid system.
Personally I think most benefits go to the grid system. In Twitter's Bootstrap all grids are fluid. Columns are defined as percentage of the total width. But the gutter have a fixed width in pixels. By default a padding of 15px on ...
Difference between Groovy Binary and Source release?
...eleases are more common on linux systems because linux systems can dramatically vary in cpu, installed library versions, kernelversions and nearly every linux system has a compiler installed.
binary releases are common on ms-windows systems. most windows machines do not have a compiler installed.
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How to get ER model of database from server with Workbench
...DB "simply make sure the tables and columns exist".
Recommended to delete all your data (this freezes MySQL Workbench on my MAC everytime due to "software out of memory..")
Open MySQL Workbench
click + to make MySQL connection
enter credentials and connect
go to database tab
click reverse engi...
PHP code to remove everything but numbers
...lace('/[^0-9]/', '', '604-619-5135');
preg_replace uses PCREs which generally start and end with a /.
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Is it possible to get the non-enumerable inherited property names of an object?
... use that and combine it with walking up the prototype chain.
function getAllProperties(obj){
var allProps = []
, curr = obj
do{
var props = Object.getOwnPropertyNames(curr)
props.forEach(function(prop){
if (allProps.indexOf(prop) === -1)
al...