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How to check whether a variable is a class or not?
...ou couldn't perform the check in the first place.
– a_guest
Dec 16 '16 at 12:42
...
Python circular importing?
...if you set them up correctly.
The easiest way to do so is to use import my_module syntax, rather than from my_module import some_object. The former will almost always work, even if my_module included imports us back. The latter only works if my_object is already defined in my_module, which in a cir...
How do I center align horizontal menu?
...
<ul id="topmenu firstlevel">
<li class="firstli" id="node_id_64">
<div><a href="#"><span>Om kampanjen</span></a>
</div>
</li>
<li id="node_id_65">
<div><a href="#"><span>Fakta om inn...
node.js fs.readdir recursive directory search
...tput required by @crawf using this line of code: require('node-dir').files(__dirname, function(err, files) { console.log(files); });
– Christiaan Westerbeek
May 14 '14 at 20:57
...
Can I have multiple Xcode versions installed?
...lose Xcode if running
Rename /Applications/Xcode.app to /Applications/Xcode_6.x.app
Enter the admin password when prompted
Double click the DMG file of your required, pre-downloaded Xcode and install it
Once installed it, before running it, change the new
/Applications/Xcode.app that was just instal...
Is there a way to auto expand objects in Chrome Dev Tools?
...creatively (ab)using console.group:
expandedLog = (function(){
var MAX_DEPTH = 100;
return function(item, depth){
depth = depth || 0;
if (depth > MAX_DEPTH ) {
console.log(item);
return;
}
if (_.isObject(item)) {
_.e...
How to prevent a background process from being stopped after closing SSH client in Linux
... between you and the process.
Create as coproc.sh:
#!/bin/bash
IFS=
run_in_coproc () {
echo "coproc[$1] -> main"
read -r; echo $REPLY
}
# dynamic-coprocess-generator. nice.
_coproc () {
local i o e n=${1//[^A-Za-z0-9_]}; shift
exec {i}<> <(:) {o}<> >(:) {e}&...
Are the PUT, DELETE, HEAD, etc methods available in most web browsers?
...ere's the bug if you want to follow along at home: w3.org/Bugs/Public/show_bug.cgi?id=10671
– Emil Lerch
Oct 21 '11 at 17:43
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show 12 more...
Reverse / invert a dictionary mapping
...
For Python 2.7.x
inv_map = {v: k for k, v in my_map.iteritems()}
For Python 3+:
inv_map = {v: k for k, v in my_map.items()}
share
|
improve...
Constants in Objective-C
...
You should create a header file like
// Constants.h
FOUNDATION_EXPORT NSString *const MyFirstConstant;
FOUNDATION_EXPORT NSString *const MySecondConstant;
//etc.
(you can use extern instead of FOUNDATION_EXPORT if your code will not be used in mixed C/C++ environments or on other plat...