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HTML5 Canvas Resize (Downscale) Image High Quality?
... : to build the smaller image, they will just pick ONE pixel in the source and use its value for the destination. which 'forgets' some details and adds noise.
Yet there's an exception to that : since the 2X image downsampling is very simple to compute (average 4 pixels to make one) and is used fo...
Animate scrollTop not working in firefox
...llback to be invoked twice. Browser-detection features have been suggested and subsequently deprecated, and some are arguably rather far-fetched.
If the callback is idempotent and doesn't require a lot of computing power, firing it twice may be a complete non-issue. If multiple invocations of the c...
How to determine if a decimal/double is an integer?
...
IMHO, the modulus operator and floating point numbers just don't mix in any way useful. The code suggested is incredibly confusing given the number of keystrokes used and will work almost nowhere outside of .NET languages. I would bet it's also much sl...
Should I be using object literals or constructor functions?
...If you want to add behaviour to your object, you can go with a constructor and add methods to the object during construction or give your class a prototype.
function MyData(foo, bar) {
this.foo = foo;
this.bar = bar;
this.verify = function () {
return this.foo === this.bar;
...
Break promise chain and call a function based on the step in the chain where it is broken (rejected)
...et's say you have something like the following:
stepOne()
.then(stepTwo, handleErrorOne)
.then(stepThree, handleErrorTwo)
.then(null, handleErrorThree);
To better understand what's happening, let's pretend this is synchronous code with try/catch blocks:
try {
try {
try {
...
Getting multiple keys of specified value of a generic Dictionary?
...tionary? Not that it is important or anything, just curious to if I understand things correctly here...
– Svish
Aug 4 '09 at 14:14
...
Find which version of package is installed with pip
...
As of pip 1.3, there is a pip show command.
$ pip show Jinja2
---
Name: Jinja2
Version: 2.7.3
Location: /path/to/virtualenv/lib/python2.7/site-packages
Requires: markupsafe
In older versions, pip freeze and grep should do the job nicely.
$ pip freeze | grep Ji...
How to update a value, given a key in a hashmap?
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In fact that is the most robust and scalable enterprise solution.
– Lavir the Whiolet
Nov 11 '10 at 18:42
12
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Difference between std::system_clock and std::steady_clock?
What is the difference between std::system_clock and std::steady_clock ? (An example case that illustrate different results/behaviours would be great).
...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
6 Answers
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