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// XPath CheatSheet | |
// To test XPath in your Chrome Debugger: $x('/html/body') | |
// http://www.jittuu.com/2012/2/14/Testing-XPath-In-Chrome/ | |
// 0. XPath Examples. | |
// More: http://xpath.alephzarro.com/content/cheatsheet.html | |
'//hr[@class="edge" and position()=1]' // every first hr of 'edge' class |
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/** | |
* ECMA2015 | |
*/ | |
function convertHex(hexCode, opacity = 1){ | |
var hex = hexCode.replace('#', ''); | |
if (hex.length === 3) { | |
hex = hex[0] + hex[0] + hex[1] + hex[1] + hex[2] + hex[2]; | |
} |
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#import "UICollectionViewFlowLayoutCenterItem.h" | |
@implementation UICollectionViewFlowLayoutCenterItem | |
- (CGPoint)targetContentOffsetForProposedContentOffset:(CGPoint)proposedContentOffset withScrollingVelocity:(CGPoint)velocity | |
{ | |
CGSize collectionViewSize = self.collectionView.bounds.size; | |
CGFloat proposedContentOffsetCenterX = proposedContentOffset.x + self.collectionView.bounds.size.width * 0.5f; | |
CGRect proposedRect = self.collectionView.bounds; |
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#!/bin/bash | |
# This script builds the iOS and Mac openSSL libraries | |
# Download openssl http://www.openssl.org/source/ and place the tarball next to this script | |
# Credits: | |
# https://github.com/st3fan/ios-openssl | |
# https://github.com/x2on/OpenSSL-for-iPhone/blob/master/build-libssl.sh | |
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- (UIImage *)compressImage:(UIImage *)image{ | |
float actualHeight = image.size.height; | |
float actualWidth = image.size.width; | |
float maxHeight = 600.0; | |
float maxWidth = 800.0; | |
float imgRatio = actualWidth/actualHeight; | |
float maxRatio = maxWidth/maxHeight; | |
float compressionQuality = 0.5;//50 percent compression | |
if (actualHeight > maxHeight || actualWidth > maxWidth) { |
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static CGPathRef createClosedPathWithPoints(const CGPoint *points, size_t count) { | |
CGMutablePathRef path = CGPathCreateMutable(); | |
CGPathAddLines(path, NULL, points, count); | |
CGPathCloseSubpath(path); | |
return path; | |
} | |
static CGRect integralFrameForPath(CGPathRef path) { | |
CGRect frame = CGPathGetBoundingBox(path); | |
return CGRectIntegral(frame); |
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- (UIViewController *)topViewController{ | |
return [self topViewController:[UIApplication sharedApplication].keyWindow.rootViewController]; | |
} | |
- (UIViewController *)topViewController:(UIViewController *)rootViewController | |
{ | |
if (rootViewController.presentedViewController == nil) { | |
return rootViewController; | |
} | |
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#!/usr/bin/env python3 | |
"""A simple python script template. | |
""" | |
import os | |
import sys | |
import argparse |
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# Extension of http://www.yilmazhuseyin.com/blog/dev/create-thumbnails-imagefield-django/ | |
# Note: image_folder and thumbnail_folder are both a callable (ie. a lambda that does a '/'.join()) | |
class Image(Media): | |
image = models.ImageField( | |
upload_to=image_folder | |
) | |
thumbnail = models.ImageField( |
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var parser = document.createElement('a'); | |
parser.href = "http://example.com:3000/pathname/?search=test#hash"; | |
parser.protocol; // => "http:" | |
parser.hostname; // => "example.com" | |
parser.port; // => "3000" | |
parser.pathname; // => "/pathname/" | |
parser.search; // => "?search=test" | |
parser.hash; // => "#hash" | |
parser.host; // => "example.com:3000" |