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Const in JavaScript: when to use it and is it necessary?
...aScript. From what I can tell, it is used to create immutable variables , and I've tested to ensure that it cannot be redefined (in Node.js):
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How do I disable right click on my web page?
...at with JavaScript by adding an event listener for the "contextmenu" event and calling the preventDefault() method:
document.addEventListener('contextmenu', event => event.preventDefault());
That being said: DON'T DO IT.
Why? Because it achieves nothing other than annoying users. Also many br...
Why do we use arrays instead of other data structures?
...gured the added "features" in programming languages had improved upon this and by that replaced them. I see now that they aren't replaced but rather given new life, so to speak.
...
Android: Background Image Size (in Pixel) which Support All Devices
I am creating an Application which will run on all Android Devices. I want to create xhdpi Graphics for My App. My App is full screen. I am confused in Creating graphics. can any one tell me the best sizes of my background image in pixels.
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Swift: Testing optionals for nil
...
For those who are new to swift as I am and are wondering: You still have to unwrap xyz inside the if block. It's safe though, even if you force unwrap
– Omar
Jun 10 '19 at 1:05
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Send email using the GMail SMTP server from a PHP page
...lease give me a link where I can get the Mail.php file. Because I tried it and it would not work Thanks
– Yoosuf
Apr 17 '11 at 6:52
11
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What are the differences between -std=c++11 and -std=gnu++11?
What are the differences between -std=c++11 and -std=gnu++11 as compilation parameter for gcc and clang? Same question with c99 and gnu99 ? I know about C++ and C standards, it's the differences in the parameters that interest me.
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Group query results by month and year in postgresql
...m("Sales") as "Sales" : The SUM() function adds up all the "Sales" values, and supplies a case-sensitive alias, with the case sensitivity maintained by using double-quotes.
group by 1,2 : The GROUP BY function must contain all columns from the SELECT list that are not part of the aggregate (aka, al...
How to calculate md5 hash of a file using javascript
...user has to have selected it, either with an <input> element or drag-and-drop. As of Jan 2013, here's how the major browsers stack up:
FF 3.6 supports FileReader, FF4 supports even more file based functionality
Chrome has supported the FileAPI since version 7.0.517.41
Internet Explorer 10 ha...
Initialize a byte array to a certain value, other than the default null? [duplicate]
... { 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20 };
For larger arrays use a standard for loop. This is the most readable and efficient way to do it:
var sevenThousandItems = new byte[7000];
for (int i = 0; i < sevenThousandItems.Length; i++)
{
sevenThousandItems[i] = 0x20;
}
Of course, if you...