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Concept behind these four lines of tricky C code
...
The number 7709179928849219.0 has the following binary representation as a 64-bit double:
01000011 00111011 01100011 01110101 01010011 00101011 00101011 01000011
+^^^^^^^ ^^^^---- -------- -------- -------- -------- -------- --------
+...
Cancellation token in Task constructor: why?
...
Eliahu Aaron
3,15122 gold badges2020 silver badges3232 bronze badges
answered Sep 14 '10 at 21:38
Max GalkinMax Galkin
...
Use JAXB to create Object from XML String
...form.Source ?
– bvdb
Jul 13 '16 at 10:29
2
In my case work as: JAXBElement<MyObject> elemen...
Float vs Decimal in ActiveRecord
...a Float. It's like a scientific notation for binary (something like +1.43*10^2). Because of that, it is impossible to store fractions and decimals in Float exactly.
That's why there is a Decimal format. If you do this:
irb:001:0> "%.47f" % (1.0/10)
=> "0.100000000000000005551115123125782702...
Should you always favor xrange() over range()?
...original)
+++ range_test.py (refactored)
@@ -1,7 +1,7 @@
for x in range(20):
- a=range(20)
+ a=list(range(20))
b=list(range(20))
c=[x for x in range(20)]
d=(x for x in range(20))
- e=xrange(20)
+ e=range(20)
As you can see, when used in a for loop or comprehension, or ...
How to use split?
...= 'something -- something_else';
var substr = str.split(' -- ');
// substr[0] contains "something"
// substr[1] contains "something_else"
If this value is in some field you could also do:
tRow.append($('<td>').text($('[id$=txtEntry2]').val().split(' -- ')[0])));
...
npm install from Git in a specific version
...t;, such as a tag, at the end as a URL fragment.
Example, for a tag named 0.3.1:
"dependencies": {
"myprivatemodule": "git@github.com:...#0.3.1"
}
Note: The above snippet shows the base URL the same as it was posted in the question.
The snipped portion (...) should be filled in:
"mypr...
document.getElementById vs jQuery $()
...
1035
Not exactly!!
document.getElementById('contents'); //returns a HTML DOM Object
var contents ...
How to get the list of all printers in computer
...
200
Try this:
foreach (string printer in System.Drawing.Printing.PrinterSettings.InstalledPrinters...
How to check if a file contains a specific string using Bash
...n't need the string displayed when it was found.
The grep command returns 0 or 1 in the exit code depending on
the result of search. 0 if something was found; 1 otherwise.
$ echo hello | grep hi ; echo $?
1
$ echo hello | grep he ; echo $?
hello
0
$ echo hello | grep -q he ; echo $?
0
You can sp...