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Difference between toFixed() and toPrecision()?
...rovides x total length." does not necessarily hold. Counter example: 0.00001234.toPrecision(3)
– djvg
Nov 28 '18 at 8:36
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How to find memory leak in a C++ code/project?
...r at all, it won't cause memory leak, is it right?
– 123iamking
May 16 '16 at 12:01
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What does curly brackets in the `var { … } = …` statements do?
...es code much more succinct.
For example:
var ascii = {
a: 97,
b: 98,
c: 99
};
var {a, b, c} = ascii;
The above code is equivalent to:
var ascii = {
a: 97,
b: 98,
c: 99
};
var a = ascii.a;
var b = ascii.b;
var c = ascii.c;
Similarly for arrays:
var ascii = [97, 98, 9...
How to implement classic sorting algorithms in modern C++?
...well as with std::next() are only available as of C++11 and beyond. For C++98, one needs to write these himself. There are substitutes from Boost.Range in boost::begin() / boost::end(), and from Boost.Utility in boost::next().
the std::is_sorted algorithm is only available for C++11 and beyond. For...
How to remove/delete a large file from commit history in Git repository?
...n page
| A login.html
* cb14efd Remove DVD-rip
| D oops.iso
* ce36c98 Careless
| A oops.iso
| A other.html
* 5af4522 Admin page
| A admin.html
* e738b63 Index
A index.html
Note that git lola is a non-standard but highly useful alias. With the --name-status switch, we can ...
Get operating system info
.../windows me/i' => 'Windows ME',
'/win98/i' => 'Windows 98',
'/win95/i' => 'Windows 95',
'/win16/i' => 'Windows 3.11',
'/macintosh|mac...
How to match “any character” in regular expression?
... flag when compiling the expression:
Pattern pattern = Pattern.compile(".*123", Pattern.DOTALL);
Matcher matcher = pattern.matcher(inputStr);
boolean matchFound = matcher.matches();
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Using String Format to show decimal up to 2 places or simple integer
...
An inelegant way would be:
var my = DoFormat(123.0);
With DoFormat being something like:
public static string DoFormat( double myNumber )
{
var s = string.Format("{0:0.00}", myNumber);
if ( s.EndsWith("00") )
{
return ((int)myNumber).ToString();
...
Validate phone number with JavaScript
...fectly. It validates that the phone number is in one of these formats:
(123) 456-7890 or 123-456-7890
26 Answers
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Truncate (not round) decimal places in SQL Server
...
select round(123.456, 2, 1)
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