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Preloading images with JavaScript
...f an array of URLs to images to be preloaded with callback on all is done:
https://jsfiddle.net/4r0Luoy7/
function preloadImages(urls, allImagesLoadedCallback){
var loadedCounter = 0;
var toBeLoadedNumber = urls.length;
urls.forEach(function(url){
preloadImage(url, function(){
l...
Most efficient way of making an if-elif-elif-else statement when the else is done the most?
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How can I upload fresh code at github?
... NEW empty github or other git repo ready:-
cd "/your/repo/dir"
git clone https://github.com/user_AKA_you/repoName # (creates /your/repo/dir/repoName)
cp "/all/your/existing/code/*" "/your/repo/dir/repoName/"
git add -A
git commit -m "initial commit"
git push origin master
Alternatively if you ha...
HTTP error 403 in Python 3 Web Scraping
...ed by Stefano Sanfilippo
from urllib.request import Request, urlopen
url="https://stackoverflow.com/search?q=html+error+403"
req = Request(url, headers={'User-Agent': 'Mozilla/5.0'})
web_byte = urlopen(req).read()
webpage = web_byte.decode('utf-8')
The web_byte is a byte object returned by the ...
Using R to download zipped data file, extract, and import data
...n with the read.table function. This example reads a .xls file.
url <-"https://www1.toronto.ca/City_Of_Toronto/Information_Technology/Open_Data/Data_Sets/Assets/Files/fire_stns.zip"
temp <- tempfile()
temp2 <- tempfile()
download.file(url, temp)
unzip(zipfile = temp, exdir = temp2)
data ...
What is a sealed trait?
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100% width Twitter Bootstrap 3 template
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Running a command in a Grunt Task
...
For async shell commands working with Grunt 0.4.x use https://github.com/rma4ok/grunt-bg-shell.
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How to display the function, procedure, triggers source code in postgresql?
... will open editable CREATE FUNCTION template.
For further reference -> https://www.postgresql.org/docs/9.6/static/app-psql.html
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The written versions of the logical operators
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