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What is the difference between '/' and '//' when used for division?
...2 will return 2. The former is floating point division, and the latter is floor division, sometimes also called integer division.
In Python 2.2 or later in the 2.x line, there is no difference for integers unless you perform a from __future__ import division, which causes Python 2.x to adopt the 3...
Generate random number between two numbers in JavaScript
... a random integer between 1 (and only 1) and 6, you would calculate:
Math.floor(Math.random() * 6) + 1
Where:
1 is the start number
6 is the number of possible results (1 + start (6) - end (1))
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What is Dispatcher Servlet in Spring?
...of handlers (generally methods on Controller classes) and views (generally JSPs) that combine to form the page or resource that's supposed to be found at that location.
I might have
a file /WEB-INF/jsp/pages/Home.jsp
and a method on a class
@RequestMapping(value="/pages/Home.html")
private Model...
Evaluate empty or null JSTL c tags
...g, I suggest following
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<c:if test="${empty fn:trim(var1)}">
</c:if>
It also handles nulls
...
How to format time since xxx e.g. “4 minutes ago” similar to Stack Exchange sites
...
function timeSince(date) {
var seconds = Math.floor((new Date() - date) / 1000);
var interval = seconds / 31536000;
if (interval > 1) {
return Math.floor(interval) + " years";
}
interval = seconds / 2592000;
if (interval > 1) {
return Math.floor...
Why do Python's math.ceil() and math.floor() operations return floats instead of integers?
...values that lie outside the representable range of integers.
Consider: If floor() returned an integer, what should floor(1.0e30) return?
Now, while Python's integers are now arbitrary precision, it wasn't always this way. The standard library functions are thin wrappers around the equivalent C lib...
Integer division with remainder in JavaScript?
...the quotient (quotient) and remainder (remainder) as:
var quotient = Math.floor(y/x);
var remainder = y % x;
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How do I convert a float number to a whole number in JavaScript?
...
var intvalue = Math.floor( floatvalue );
var intvalue = Math.ceil( floatvalue );
var intvalue = Math.round( floatvalue );
// `Math.trunc` was added in ECMAScript 6
var intvalue = Math.trunc( floatvalue );
Math object reference
Examples
P...
Undefined reference to `pow' and `floor'
...ulator in C but when compiling gcc tells me that I'm missing the pow and floor functions. What's wrong?
6 Answers
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Generating random whole numbers in JavaScript in a specific range?
...function getRandomInt(min, max) {
min = Math.ceil(min);
max = Math.floor(max);
return Math.floor(Math.random() * (max - min + 1)) + min;
}
Here's the logic behind it. It's a simple rule of three:
Math.random() returns a Number between 0 (inclusive) and 1 (exclusive). So we have an i...