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Using try vs if in python
...trol,
but it makes sense most when Exceptions are actually exceptional.
From the Python docs:
EAFP
Easier to ask for forgiveness than
permission. This common Python coding
style assumes the existence of valid
keys or attributes and catches
exceptions if the assumption proves
fa...
Default argument values in JavaScript functions [duplicate]
...
ES2015 onwards:
From ES6/ES2015, we have default parameters in the language specification. So we can just do something simple like,
function A(a, b = 4, c = 5) {
}
or combined with ES2015 destructuring,
function B({c} = {c: 2}, [d, e] = ...
How many double numbers are there between 0.0 and 1.0?
...
The article Java's new math, Part 2: Floating-point numbers from IBM offers the following code snippet to solve this (in floats, but I suspect it works for doubles as well):
public class FloatCounter {
public static void main(String[] args) {
float x = 1.0F;
int ...
text-overflow: ellipsis not working
...clamp: 2; // max nb lines to show
-webkit-box-orient: vertical;
Inspired from youtube ;-)
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Why catch and rethrow an exception in C#?
...bout right... consider the case of null pointer exception thrown somewhere from a large body of code. The message is vanilla, without the stack trace you're left with "something was null somewhere". NOT good when production is dead; and you've NO minutes or less to work out the flamin' problem is, a...
How can I round a number in JavaScript? .toFixed() returns a string?
...ed is a function designed to format a number before printing it out. It's from the family of toString, toExponential and toPrecision.
To round a number, you would do this:
someNumber = 42.008;
someNumber = Math.round( someNumber * 1e2 ) / 1e2;
someNumber === 42.01;
// if you need 3 digits, repla...
How to use a link to call JavaScript?
...ng (XSS) and data injection attacks. These attacks are used for everything from data theft to site defacement or distribution of malware. Read more here.
Accessibility: Anchor tags are for linking to other documents/pages/resources. If your link doesn't go anywhere, it should be a button. This makes...
HTML “overlay” which allows clicks to fall through to elements behind it [duplicate]
...k it inside of a element on top of everything, but this prevents the user from clicking on any links/buttons/etc.
Is there a way to have its content float on top of everything (it's semi-transparent, so you can still see what is behind) and have the user interact with the layer below it?
...
jquery .html() vs .append()
...t;li>'s into a <ul> and saw an increase in render (not load) time from ~12s -> .25s by switching the .append(giantListHTMLAsASingleString) to .html(giantListHTMLAsASingleString). If you are alreadying doing the 'join' trick or building up a big html string on your list there is definite...
Reactive Extensions bug on Windows Phone
... The debugger is guessing correct, and the compiler is somehow taking ques from it. It doesnt really matter why the debugger fixes the problem, the root cause has been found.
– Japes
Jun 18 '15 at 3:54
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