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What is the difference between is_a and instanceof?
I am aware that instanceof is an operator and that is_a is a method.
9 Answers
9
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Tracking the script execution time in PHP
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On unixoid systems (and in php 7+ on Windows as well), you can use getrusage, like:
// Script start
$rustart = getrusage();
// Code ...
// Script end
function rutime($ru, $rus, $index) {
return ($ru["ru_$index.tv_sec"]*1000 + intval($ru["...
Android, canvas: How do I clear (delete contents of) a canvas (= bitmaps), living in a surfaceView?
...or(Color.BLACK), or whatever color you want to clear your Canvas with.
And: how can I update just a part of the screen ?
There is no such method that just update a "part of the screen" since Android OS is redrawing every pixel when updating the screen. But, when you're not clearing old drawing...
Programmatically obtain the phone number of the Android phone
...n I programmatically get the phone number of the device that is running my android app?
17 Answers
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Emulator error: This AVD's configuration is missing a kernel file
This problem was discovered when I tried to run the Android emulator in Eclipse. Can't figure out what happened. I searched online for the solution, but it seemed to be vague and I don't understand clearly.
I was following the steps to install the AVD according to the sites and I can't figure out w...
Specifying rails version to use when creating a new application
I have two versions of rails (2.1.0 and 2.2.2) installed in my computer.
7 Answers
7
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Difference between DateTime and Time in Ruby
What's the difference between DateTime and Time classes in Ruby and what factors would cause me to choose one or the other?
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Node.js/Express.js App Only Works on Port 3000
...a Node.js/Express.js app running on my server that only works on port 3000 and I'm trying to figure out why. Here's what I've found:
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How do I run a spring boot executable jar in a Production environment?
...ing Boot 1.3.0.M1, you are able to build fully executable jars using Maven and Gradle.
For Maven, just include the following in your pom.xml:
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<config...
How can I find out the total physical memory (RAM) of my linux box suitable to be parsed by a shell
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If you're interested in the physical RAM, use the command dmidecode. It gives you a lot more information than just that, but depending on your use case, you might also want to know if the 8G in the system come from 2x4GB sticks or 4x2GB sticks.
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