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Sleep until a specific time/date
...bash, do the following:
current_epoch=$(date +%s)
target_epoch=$(date -d '01/01/2010 12:00' +%s)
sleep_seconds=$(( $target_epoch - $current_epoch ))
sleep $sleep_seconds
To add precision down to nanoseconds (effectively more around milliseconds) use e.g. this syntax:
current_epoch=$(date +%s.%...
Why is early return slower than else?
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+100
This is a pure guess, and I haven't figured out an easy way to check whether it is right, but I have a theory for you.
I tried your ...
Can you set a border opacity in CSS?
...ith the rgba color format. For example, this would give a red border with 50% opacity:
div {
border: 1px solid rgba(255, 0, 0, .5);
-webkit-background-clip: padding-box; /* for Safari */
background-clip: padding-box; /* for IE9+, Firefox 4+, Opera, Chrome */
}
The problem with this ap...
What is the difference between CMD and ENTRYPOINT in a Dockerfile?
... |
edited May 9 '18 at 20:46
Software Engineer
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iPhone Data Usage Tracking/Monitoring
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+50
The thing is that pdp_ip0 is one of interfaces, all pdpXXX are WWAN interfaces dedicated to different functions, voicemail, general ne...
Use HTML5 to resize an image before upload
...tos = function(url){
// Read in file
var file = event.target.files[0];
// Ensure it's an image
if(file.type.match(/image.*/)) {
console.log('An image has been loaded');
// Load the image
var reader = new FileReader();
reader.onload = function (reader...
How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
...
309
I am also looking for an answer to this question, (to clarify, I want to be able to draw an ima...
.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
...est version, on Hotspot 8, is:
MyClass[] arr = myList.toArray(new MyClass[0]);
I have run a micro benchmark using jmh the results and code are below, showing that the version with an empty array consistently outperforms the version with a presized array. Note that if you can reuse an existing arr...
Android Left to Right slide animation
...ndroid:shareInterpolator="false">
<translate android:fromXDelta="-100%" android:toXDelta="0%"
android:fromYDelta="0%" android:toYDelta="0%"
android:duration="700"/>
</set>
This is for right to left animation:
<set xmlns:android="http://schemas.android...