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How to use Comparator in Java to sort
...ator<T>:
public class ComparatorDemo {
public static void main(String[] args) {
List<Person> people = Arrays.asList(
new Person("Joe", 24),
new Person("Pete", 18),
new Person("Chris", 21)
);
Collections.sort(pe...
Truncate number to two decimal places without rounding
...
Convert the number into a string, match the number up to the second decimal place:
function calc(theform) {
var num = theform.original.value, rounded = theform.rounded
var with2Decimals = num.toString().match(/^-?\d+(?:\.\d{0,2})?/)[0]
...
Should I use AppDomain.CurrentDomain.BaseDirectory or System.Environment.CurrentDirectory?
...
I usually use something like:
string AppPath = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().GetName().CodeBase);
AppPath = AppPath.Replace("file:\\", "");
...
How can I escape double quotes in XML attributes values?
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The String conversion page on the Coder's Toolbox site is handy for encoding more than a small amount of HTML or XML code for inclusion as a value in an XML element.
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How can I convert string to datetime with format specification in JavaScript?
How can I convert a string to a date time object in javascript by specifying a format string?
15 Answers
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How to check whether an object is a date?
... i.e. But it will return true for invalid dates too, e.g. new Date('random_string') is also instance of Date
date instanceof Date
This will fail if objects are passed across frame boundaries.
A work-around for this is to check the object's class via
Object.prototype.toString.call(date) === '[ob...
Is it possible to specify a starting number for an ordered list?
...L 1.0's transitional DTD but not in XHTML 1.0's strict DTD (search for the string ATTLIST ol and check the attribute list). So in spite of what some of the older comments say, the start attribute was not deprecated; rather it was invalid in the strict DTDs of HTML 4.01 and XHTML 1.0. In spite of wha...
What does Serializable mean?
...*
*/
private static final long serialVersionUID = 1L;
public String firstName;
public String lastName;
public int age;
public String address;
public void play() {
System.out.println(String.format(
"If I win, send me the trophy to this address: %...
Get first key in a (possibly) associative array?
...another newly created array, and requesting the first key of an array as a string.
– Blixt
Sep 4 '09 at 6:33
3
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JavaScript query string [closed]
Is there any JavaScript library that makes a dictionary out of the query string, ASP.NET style?
15 Answers
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