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What is the rationale for all comparisons returning false for IEEE754 NaN values?
...ly exclusive relations are possible: less than, equal, greater than, and unordered. The last case arises when at least one operand is NaN. Every NaN shall compare unordered with everything, including itself.
As far as writing extra code to handle NaNs goes, it is usually possible (though not alway...
How to use ADB to send touch events to device using sendevent command?
...
In order to do a particular action (for example to open the web browser), you need to first figure out where to tap. To do that, you can first run:
adb shell getevent -l
Once you press on the device, at the location that you...
Clean ways to write multiple 'for' loops
...ch3d(B, [](double i){ std::cout << i << std::endl; });
}
In order to make it N-ary we need some template magic. First of all we should create SFINAE structure to distinguish whether this value or container. The default implementation for values, and specialisations for arrays and each...
How many bytes in a JavaScript string?
...String Value
A string value is a member of the type String and is a
finite ordered sequence of zero or
more 16-bit unsigned integer values.
NOTE Although each value usually
represents a single 16-bit unit of
UTF-16 text, the language does not
place any restrictions or requirements
on the values exce...
How do I remove an array item in TypeScript?
...
i think in order to return it as an object you have to do this this.foo_objects = this.foo_objects.filter(obj => obj !== foo_object)[0];
– Roel
Jun 30 '17 at 12:12
...
How to do a FULL OUTER JOIN in MySQL?
...FROM t2
LEFT JOIN t1 ON t2.id = t1.id
WHERE t1.col1 = 'someValue'
So the order of tables has changed, but the predicate is still applied to t1, but t1 is now in the 'ON' clause. If t1.col1 is defined as NOT NULL
column, then this query will be null-rejected.
Any outer-join (left, right, full) tha...
How do I look inside a Python object?
...
I'd reverse that order.
– bayer
Jun 17 '09 at 10:19
5
...
How can I pipe stderr, and not stdout?
...nd 2>&1 >/dev/null | grep 'something'
Here is what happens, in order:
a pipe (fifo) is created. "command FD1" is pointed to this pipe. "grep FD0" also is pointed to this pipe
"command FD2" is pointed to where "command FD1" currently points (the pipe)
"command FD1" is pointed to /dev/nu...
Using PHP with Socket.io
...eck this one. This is really important! You need this javascript libary in order for you client.php or client.html to communicate with the server.php when you run it.
https://github.com/walkor/phpsocket.io/tree/master/examples/chat/public/socket.io-client
I just copy and pasted that socket.io-clie...
Why does jQuery or a DOM method such as getElementById not find the element?
...d scripts are (generally) executed as they're encountered. This means that order matters. Typically, scripts can't find elements which appear later in the markup because those elements have yet to be added to the DOM.
Consider the following markup; script #1 fails to find the <div> while scri...