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How can the Euclidean distance be calculated with NumPy?
...found here: docs.scipy.org/doc/numpy/reference/generated/… My only real comment was sort of pointing out the connection between a norm (in this case the Frobenius norm/2-norm which is the default for norm function) and a metric (in this case Euclidean distance).
– Mark Lavin...
How to check for an undefined or null variable in JavaScript?
...ou don't care about
0 and false, using if(obj.undefProp) is ok. There's a common idiom based on this fact:
value = obj.prop || defaultValue
which means "if obj has the property prop, assign it to value, otherwise assign the default value defautValue".
Some people consider this behavior confusin...
Mockito - difference between doReturn() and when()
...turn/when doesn't, is type-checking of the value that you're returning, at compile time. However, I believe this is of almost no value - if you've got the type wrong, you'll find out as soon as you run your test.
I strongly recommend only using doReturn/when. There is no point in learning two syn...
Difference between string object and string literal [duplicate]
...ring literal notation when possible. It is easier to read and it gives the compiler a chance to optimize your code.
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CSS force image resize and keep aspect ratio
...CSS:</p>
<img width="400" height="400" src="http://i.stack.imgur.com/aEEkn.png">
This will make image shrink if it's too big for specified area (as downside, it will not enlarge image).
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Smooth GPS data
... if you don't have accuracy info then you can't use a Kalman filter. It's completely fundamental to what the Kalman filter is trying to do.
– Stochastically
Dec 14 '18 at 13:52
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Using a custom image for a UITableViewCell's accessoryView and having it respond to UITableViewDeleg
...ve to create your accessory as a button or other UIControl subclass (I'd recommend a button using -buttonWithType:UIButtonTypeCustom and setting the button's image, rather than using a UIImageView).
Here's some things I use in Outpost, which customizes enough of the standard widgets (just slightly,...
Difference between EXISTS and IN in SQL?
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AngularJS : Prevent error $digest already in progress when calling $scope.$apply()
...utside the reach of Angular. For example, when a twitter bootstrap modal becomes hidden. Sometimes the DOM event fires when a $digest is in progress, sometimes not. That's why I use this check.
I would love to know a better way if anyone knows one.
From comments:
by @anddoutoi
angular.js Anti...
How do I view 'git diff' output with my preferred diff tool/ viewer?
... git config --global diff.external <path_to_wrapper_script>
at the command prompt, replacing with the path to "git-diff-wrapper.sh", so your ~/.gitconfig contains
-->8-(snip)--
[diff]
external = <path_to_wrapper_script>
--8<-(snap)--
Be sure to use the correct syntax to s...