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CSS Display an Image Resized and Cropped
I want to show an image from an URL with a certain width and height even if it has a different size ratio.
So I want to resize (maintaining the ratio) and then cut the image to the size I want.
...
Python: fastest way to create a list of n lists
...ly way which is marginally faster than
d = [[] for x in xrange(n)]
is
from itertools import repeat
d = [[] for i in repeat(None, n)]
It does not have to create a new int object in every iteration and is about 15 % faster on my machine.
Edit: Using NumPy, you can avoid the Python loop using
...
How to convert numbers between hexadecimal and decimal
...
To convert from decimal to hex do...
string hexValue = decValue.ToString("X");
To convert from hex to decimal do either...
int decValue = int.Parse(hexValue, System.Globalization.NumberStyles.HexNumber);
or
int decValue = Conve...
How to use the new affix plugin in twitter's bootstrap 2.1.0?
...ce. In your case, once 50px is scrolled, the class on your item is changed from .affix-top to .affix. You'd probably want to set data-offset-top to about 130px in your use case.
Once this class change occurs, you must position your element in css by styling the positioning for class .affix. Bootstr...
React.js - input losing focus when rerendering
...t I was re-rendering the input on state change.
Buggy Code:
import React from 'react';
import styled from 'styled-components';
class SuperAwesomeComp extends React.Component {
state = {
email: ''
};
updateEmail = e => {
e.preventDefault();
this.setState({ email: e.target.valu...
Why does Double.NaN==Double.NaN return false?
...ith an IEEE-conforming float will produce false. So that standard differs from Java in that IEEE demands that (NAN != NAN) == false.
– Drew Dormann
Jan 17 '12 at 19:57
2
...
Composer: how can I install another dependency without updating old ones?
...Actually, the correct solution is:
composer require vendor/package
Taken from the CLI documentation for Composer:
The require command adds new packages to the composer.json file from the current directory.
php composer.phar require
After adding/changing the requirements, the modified...
How to execute mongo commands through shell scripts?
...u'll want to surround the eval argument in single quotes to keep the shell from evaluating the operator as an environment variable:
mongo --eval 'db.mycollection.update({"name":"foo"},{$set:{"this":"that"}});' myDbName
Otherwise you may see something like this:
mongo --eval "db.test.update({\"na...
SOAP server and client application VCL+indy demo for Delphi XE?
...m 28789.
These contain every single one of the Delphi 2007 era SOAP demos from the WebServices folder, now updated for Delphi XE and XE2, including converting the old WAD servers into new INDY VCL servers. You'd think that was impressive, except it's not. It's really easy. Just use the wizard to c...
How to format a java.sql Timestamp for displaying?
...ession scope / instance variables / static context and then accessing them from multiple threads. Just create a new SimpleDateFormat() within your method and discard it after use. That is threadsafe.
– Glen Best
Apr 24 '13 at 4:48
...