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Why can't I do ?
...ly a disturbance. You CAN upload user files to the server with AJAX from a form with <input type=file> field, but if you want to be nice to the user and show a preview, you HAVE to do the round trip and upload the file to the server first. How is it more secure than generating the preview imag...
How do you automatically set the focus to a textbox when a web page loads?
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In HTML there's an autofocus attribute to all form fields. There's a good tutorial on it in Dive Into HTML 5. Unfortunately it's currently not supported by IE versions less than 10.
To use the HTML 5 attribute and fall back to a JS option:
<input id="my-input" autof...
Parsing query strings on Android
... own is better", but rather that it's great to have good material for an informed decision in my own code.
– Hanno Fietz
May 23 '11 at 10:55
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How to display the function, procedure, triggers source code in postgresql?
...-------------
26599 | tbl_tmp
(1 row)
step 3: list the table information
skytf=> \d tbl_tmp
It will show you the details of the trigger of the table . Usually a trigger uses a function. So you can get the source code of the trigger function just as the above that I pointed ...
What is a predicate in c#? [duplicate]
...conception developers have is that if something takes one line, it must perform better than something that takes ten lines. But behind the scenes, the Find method, which takes a Predicate<T>, is just enumerating after all. The same is true for a lot of Linq's functionality.
So let's take a lo...
Using Regular Expressions to Extract a Value in Java
I have several strings in the rough form:
13 Answers
13
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Is there a way to use shell_exec without waiting for the command to complete?
... adding.
"> /dev/null 2>/dev/null &"
shell_exec('php measurePerformance.php 47 844 email@yahoo.com > /dev/null 2>/dev/null &');
Note this also gets rid of the stdio and stderr.
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MVC (Laravel) where to add logic
...e in your code? Do you create a static method? What if that emails needs information from another model?
I think the model should represent an entity. With Laravel, I only use the model class to add things like fillable, guarded, table and the relations (this is because I use the Repository Pattern...
How to convert Strings to and from UTF8 byte arrays in Java
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Here's a solution that avoids performing the Charset lookup for every conversion:
import java.nio.charset.Charset;
private final Charset UTF8_CHARSET = Charset.forName("UTF-8");
String decodeUTF8(byte[] bytes) {
return new String(bytes, UTF8_CHARSET);...
How to get the CPU Usage in C#?
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You can use the PerformanceCounter class from System.Diagnostics.
Initialize like this:
PerformanceCounter cpuCounter;
PerformanceCounter ramCounter;
cpuCounter = new PerformanceCounter("Processor", "% Processor Time", "_Total");
ramCounter ...