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Ruby class types and case statements
...seems that the use of === by the case statement is quite a common problem, now that I see this is the problem. This should probably be pointed out more often in tutorials and such (but I bet that many tutorial writers aren't aware of this either).
– Daisy Sophia Hollman
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TLSF源码及算法介绍 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
...man ten Brugge <hermantenbrugge@home.nl>:
*
* - Add 64 bit support. It now runs on x86_64 and solaris64.
* - I also tested this on vxworks/32and solaris/32 and i386/32 processors.
* - Remove assembly code. I could not measure any performance difference
* on my core2 processor. This also...
Rails Model find where not equal
...w can I find records in my database on a not equal condition? I have this now, but is there a fancy rails-speak way of doing it?
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How do getters and setters work?
...smart.
Here's a javascript example from mozilla:
var o = { a:0 } // `o` is now a basic object
Object.defineProperty(o, "b", {
get: function () {
return this.a + 1;
}
});
console.log(o.b) // Runs the getter, which yields a + 1 (which is 1)
I've used these A LOT because they are...
In Python, how do I read the exif data for an image?
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For Python3.x and starting Pillow==6.0.0, Image objects now provide a getexif() method that returns <class 'PIL.Image.Exif'> or None if the image has no EXIF data.
From Pillow 6.0.0 release notes:
getexif() has been added, which returns an Exif instance. Values can
be retri...
Adding two numbers concatenates them instead of calculating the sum
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I would discourage anyone from using this shortcut. I know that actually parsing a string into a number requires more code but at least the code clearly matches the intention.
– Si Kelly
May 10 '17 at 12:33
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Bash, no-arguments warning, and case decisions
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RE: "exit 0". I don't know if exiting the script was what he had in mind. But yes, that's an excellent guide.
– Trampas Kirk
Mar 11 '10 at 19:35
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How may I sort a list alphabetically using jQuery?
...o the DOM nodes using jQuery.data prior to sorting, those associations are now pointing to the wrong nodes after the sort.
– Rudism
Oct 28 '11 at 13:57
13
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HTML Input=“file” Accept Attribute File Type (CSV)
...his attribute is very old and not accepted in modern browsers as far as I know, But here is an alternative to it, Try this
<script type="text/javascript" language="javascript">
function checkfile(sender) {
var validExts = new Array(".xlsx", ".xls", ".csv");
var fileExt = sender.value;...
.keyCode vs. .which
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If you are staying in vanilla Javascript, please note keyCode is now deprecated and will be dropped:
This feature has been removed from the Web standards. Though some browsers may still support it, it is in the process of being dropped. Avoid using it and update existing code if possib...