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Is there any way to use a numeric type as an object key?
...for this application. Here is where I have used it for numeric keys, a key-based event.
onKeydown(e) {
const { toggleSidebar, next, previous } = this.props;
const keyMapping = new Map([
[ 83, toggleSidebar ], // user presses the s button
[ 37, next ], // user presses the rig...
unique object identifier in javascript
...John Resig obviously knows all there is about JavaScript and his method is based on all that knowledge.
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How do I format a number in Java?
...t. The other more cryptic methods (String.format, PrintStream.printf, etc) based around java.util.Formatter should keep C programmers happy(ish).
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Best practices/guidance for maintaining assembly version numbers
...d you will have to adapt as you come across them. My original approach was based on using subversion but recently I have moved to Git. Source control like subversion and source safe that use a central repository have a number that can be used to identify a particular set of sources from a given time...
How to match “any character” in regular expression?
...in Eclipse, or as a user of any Java application that offers regex search. Based on regular-expression.info's guide, you may need to use {.,\n,\r,\u2028,\u2029,\u0085} to match absolutely any character (the Unicode characters are additional line-terminating characters added not matched by . in Java)...
Truncate a string straight JavaScript
...ds up, and instead discard the word where the truncation occurred. Totally based on Sugar.js source.
function truncateOnWord(str, limit) {
var trimmable = '\u0009\u000A\u000B\u000C\u000D\u0020\u00A0\u1680\u180E\u2000\u2001\u2002\u2003\u2004\u2005\u2006\u2007\u2008\u2009\u200A\u202F\u205F\u2...
Case in Select Statement
...earched CASE expression allows for values to be replaced in the result set based on comparison values. The following example displays the list price as a text comment based on the price range for a product.
USE AdventureWorks2012;
GO
SELECT ProductNumber, Name, "Price Range" =
CASE
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How to concatenate a std::string and an int?
I thought this would be really simple but it's presenting some difficulties. If I have
23 Answers
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Convert List to List
While we can inherit from base class/interface, why can't we declare a List<>
using same class/interface?
11 Ans...
How does LMAX's disruptor pattern work?
...cy.
Compared to SEDA
LMAX built the Disruptor pattern to replace a SEDA based approach.
The main improvement that it provided over SEDA was the ability to do work in parallel. To do this the Disruptor supports multi-casting the same messages (in the same order) to multiple consumers. This avoid...