— React-Native Programmierer . Patrick Tresp

A Snippet which is very handy, is to determine, if something is above the fold AND also within the viewable area. Above the fold does not necessarily mean – visible.

var element = jQuery("#canvas");
var pageTopValue = element.offset().top + element[0].scrollHeight;
var viewable = jQuery(window).scrollTop()+ jQuery(window).height();
 
if( jQuery(window).scrollTop() > pageTopValue ){
 console.log( "Element hidden (above viewable area)" );
}
else if( viewable < element.offset().top ){
console.log( "Element hidden (below viewable area)" );
 
}
else{
console.log( "Element visible! (within viewable area)" );
}

for i in *; do mv "$i" "$(echo $i|tr A-Z a-z)"; done

Whithout writing too much about it for today, the best way ( i can always only speak for myself ) to call a function with setTimeout in JavaScript is:


var myTimeout = 400;
setTimeout(function(){ callFunction(parameter[s]) }, myTimeout);

function callFunction( parameter[s] )
{
// Do some Stuff here with the parameter[s]
}


Especially when a Parameter is a „multiple Word – String“ (e.g. „Hello Everyone, i am a multiple word String!“ ), using a „closure“ will be the way that works also in Internet Explorer 🙂

During a Projekt, i was wondering, why local use of HTML5 Videos was running, but online it failed.

It turned out, that the MIME-Types for .ogg or .webm were not correctly set. The Server served them as plain text-files.

To get the Server to add correct headers to the files, it is helpful to add those lines in your .htacess .

Not all of them are always neccessary.

AddType video/ogg .ogm 
AddType video/ogg .ogv 
AddType video/ogg .ogg 
AddType video/webm .webm 
AddType audio/webm .weba
AddType video/mp4 .mp4 
AddType video/x-m4v .m4v

Sometimes it’s that easy

or…. how to get back to efficiency.

One of the major issues for me as a developer is how to use my time. Decisions need to be made, what has to be done ( by me ) till when and what needs to be worked on next.

Since i am a very lucky in the fact, that i have lots of jobs, i tended to fuddle up everything and not get anything done stress free.

So what now? I won’t be the one, that will invent a time stretching mechanism in physics, astrology or whatever.

I read an article that came per tweet ( can’t find it of course by now ) that inspired me, coming back to more efficiency.

First, a couple weeks ago a friend reminded me, that i could set my phone to not push e-mails anytime to my phone. Which means, whenever i want or need to receive E-Mails, i simply open the mail-app manually. Whoa what a relief – the phone does not „pling“ all the time which distracts me or wants my attention.

Which leads me to the second point. Event though my phone doesn’t pling that much anymore, i wondered, what distracts my attention to code while programming. The pling… it is still there, cause my mail program of course is checking my mails all the time. Every 10-20 minutes or in even smaller periods the pling comes up. I sat back and read the mails, that needed so much urgent attention:

• Cheap Flights to London for 29 € ( Oh yeah lets go )
• Get a Picture framed for 40% off ( right, haven’t done that for a while )
• Tibet needs help – Donate here ( just phish my account! )
• etc.
• etc.

I figured, its not SPAM! I really signed up for those newsletters and surely marked them as read, whenever they came in. So for a couple of weeks i unsubscribed all newsletters which i really do not need to receive, since i look up stuff manually that interests me. Many services are unsubscribed by now and daily E-Mail rate dropped 80%. Still working on more!

Third– Email is no real-time communication, even though we tend to force ourselves to believe that. I do, for example, have a time, where i am very productive in coding, another time for writing Mails, another for doing office stuff. There not the same each day, but when i feel, i am getting ready to code, i close my mail program for at least an hour. no more pling…