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Is R's apply family more than syntactic sugar?
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The apply functions in R don't provide improved performance over other looping functions (e.g. for). One exception to this is lapply which can be a little faster because it does more work in C code than in R (see this question for an example of this).
But in general, the ...
What is the pythonic way to avoid default parameters that are empty lists?
...ist)
The docs say you should use None as the default and explicitly test for it in the body of the function.
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The simplest possible JavaScript countdown timer? [closed]
...) + 1000;
}
};
// we don't want to wait a full second before the timer starts
timer();
setInterval(timer, 1000);
}
window.onload = function () {
var fiveMinutes = 60 * 5,
display = document.querySelector('#time');
startTimer(fiveMinutes, display);
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How to set transform origin in SVG
...t using javascript. The problem is, by default, it always applies the transform around the origin at (0, 0) – top left.
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Android detect Done key press for OnScreen Keyboard
... a great starting point. Just I needed to use EditorInfo.IME_ACTION_SEARCH for the lens search-button instead.
– TechNyquist
Aug 18 '15 at 16:27
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Multiline strings in JSON
I'm writing some data files in JSON format and would like to have some really long string values split over multiple lines. Using python's JSON module I get a whole lot of errors, whether I use \ or \n as an escape.
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How can I append a string to an existing field in MySQL?
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You need to use the CONCAT() function in MySQL for string concatenation:
UPDATE categories SET code = CONCAT(code, '_standard') WHERE id = 1;
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How do I include inline JavaScript in Haml?
... to use a different type than text/javascript, which is was I needed to do for MathJax.
You can use the plain filter to keep HAML from parsing the script and throwing an illegal nesting error:
%script{type: "text/x-mathjax-config"}
:plain
MathJax.Hub.Config({
tex2jax: {
inline...
What exactly is Hot Module Replacement in Webpack?
...erver: https://webpack.js.org/configuration/dev-server/
It's not so much for HMR, but here are the links:
Example: https://webpack.js.org/guides/hot-module-replacement/
API: https://webpack.js.org/concepts/hot-module-replacement/
I'll add these answers to the documentation.
How does it work?
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AngularJS. How to call controller function from outside of controller component
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I couldn't get the $apply part to work for me, until I wrapped the code into a function, e.g. ..scope.$apply(function() { scope.get() });
– surfitscrollit
Jan 7 '15 at 12:07
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