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Getting JavaScript object key list
...roto.hasOwnProperty; .has = function(obj, key) { return hasOwnProperty.call(obj, key); }; _.keys = nativeKeys || function(obj) { if (obj !== Object(obj)) throw new TypeError('Invalid object'); var keys = []; for (var key in obj) if (.has(obj, key)) keys.push(key); return k...
Html code as IFRAME source rather than a URL
...chnique would look something like this:
var iframe = document.getElementById('foo'),
iframedoc = iframe.contentDocument || iframe.contentWindow.document;
iframedoc.body.innerHTML = 'Hello world';
Example
Edit 2 (December 2017): use the Html5's srcdoc attribute, just like in Saurabh Chandr...
Convert decimal to hexadecimal in UNIX shell script
...R is a bash extension. Not mentioned in the man page, revealed only if one calls printf without arguments
– Adrian W
Oct 24 '18 at 10:19
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Open Graph namespace declaration: HTML with XMLNS or head prefix?
... Nothing will break right now, but relying on defaults is rarely a good idea when you can be explicit. If 2 years down the road we change the defaults, your site will break. Also, if you declare your namespaces directly it will help other parsers not just Facebook.
– Paul Ta...
How do I repeat an edit on multiple lines in Vim?
...
I believe the easiest way to do this is
1) record a macro for one line, call it 'a'; in this case one types
q a I , ESC j q
2) select the block of lines that you want to apply the macro to
3) use the 'norm' function to execute macro 'a' over this block of lines, i.e.,
:'<,'>norm@a...
How do I get the current username in .NET using C#?
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You need to add ToArray() after Split before calling Last()
– codenamezero
Nov 17 '17 at 16:28
1
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Writing to output window of Visual Studio
...
in VS 2015 it's called: "Redirect all Output Window text to the Immediate Window", just in case, some had to look for 5 mins to find the appropriate setting :) - I was scrolling up and down to find an optiona starting with "Send..." :)
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How to pipe stdout while keeping it on screen ? (and not to a output file)
...ing files, I use something like:
% ls [A-J]* | tee /dev/tty | wc -l
To avoid having to remember all this, I define aliases:
% alias t tee /dev/tty
% alias wcl wc -l
so that I can simply say:
% ls [A-J]* | t | wcl
POSTSCRIPT: For the younger set, who might titter at its pronunciation as "tit...
How to get default gateway in Mac OSX
...You just saved me a few hours at the new house when Time Warner's modem decided it wanted the IP my router used to have, and ifconfig lied about the gateway.
– Chris Doggett
Jun 20 '13 at 3:05
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Issue with virtualenv - cannot activate
...ying the python binary explicitly.
If my environment is in say .env I'll call python via ./.env/Scripts/python.exe …, or in a shebang line #!./.env/Scripts/python.exe;
Both assuming your working directory contains your virtualenv (.env).
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