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Best TCP port number range for internal applications [closed]
...ients without specifying port 1023 since it hooks you up to a server that knows nothing of the telnet protocol - we have to break out of the telnet client and do it properly:
telnet big_honking_mainframe_box.com 1023
If you really can't make the client side configurable, pick one in the second ra...
What does |= (ior) do in Python?
...search |= so I'm having trouble finding relevant documentation. Anybody know?
8 Answers
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How to import classes defined in __init__.py
...d something like this to lib/__init__.py
from .helperclass import Helper
now you can import it directly:
from lib import Helper
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Convert blob to base64
...res => {
// do what you wanna do
console.log(res); // res is base64 now
});
I write this helper function for my problem on React Native project, I wanted to download an image and then store it as a cached image:
fetch(imageAddressAsStringValue)
.then(res => res.blob())
.then(blobT...
How to test multiple variables against a value?
..., and fastest, format is:
if 1 in {x, y, z}:
Using his advice you would now have separate if-statements so that Python will read each statement whether the former were True or False. Such as:
if 0 in {x, y, z}:
mylist.append("c")
if 1 in {x, y, z}:
mylist.append("d")
if 2 in {x, y, z}:
...
How do I implement a callback in PHP?
...
With PHP 5.3, you can now do this:
function doIt($callback) { $callback(); }
doIt(function() {
// this will be done
});
Finally a nice way to do it. A great addition to PHP, because callbacks are awesome.
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Alternative to iFrames with HTML5
I would like to know if there is an alternative to iFrames with HTML5.
I mean by that, be able to inject cross-domains HTML inside of a webpage without using an iFrame.
...
How do I generate a stream from a string?
...his case that is the MemoryStream we want to return.
In .NET 4.5 there is now an overload for StreamWriter that keeps the underlying stream open after the writer is disposed of, but this code does the same thing and works with other versions of .NET too.
See Is there any way to close a StreamWrite...
For i = 0, why is (i += i++) equal to 0?
...ough decomposition of i += i++ to the parts it is made of requires one to know that both += and ++ are not atomic (that is, neither one is a single operation), even if they look like they are. The way these are implemented involve temporary variables, copies of i before the operations take place - o...
Color Tint UIButton Image
...bute inspector of the image set the value render as to "Template Image"
Now whenever you setbutton.tintColor = UIColor.red you button will be shown in red.
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