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How to remove the first character of string in PHP?
...r[0] = null;
// replaced by �, but ok for echo
Exec time for 1.000.000 tests : 0.39602184295654 sec
Remove the first letter with substr()
$str = "hello";
$str = substr($str, 1);
Exec time for 1.000.000 tests : 5.153294801712 sec
Remove the first letter with ltrim()
$str = "hello";
$str...
Get just the filename from a path in a Bash script [duplicate]
...nvenient. Those are alternative commands:
FILE_PATH="/opt/datastores/sda2/test.old.img"
echo "$FILE_PATH" | sed "s/.*\///"
This returns test.old.img like basename.
This is salt filename without extension:
echo "$FILE_PATH" | sed -r "s/.+\/(.+)\..+/\1/"
It returns test.old.
And following stat...
C# 4 default parameter values: How to assign a default DateTime/object value? [duplicate]
...r function, then you can initialize it to any value you want.
static void test(DateTime? dt = null)
{
if (dt == null)
{
dt = new DateTime(1981, 03, 01);
}
//...
}
You can call it with a named parameter like this:
test(dt: new DateTime(2010, 03, 01));
And with the defau...
How can I pass a parameter to a setTimeout() callback?
...(function() { console.write(i); }, 0); } this will log "100" a 100 times (tested on FF). Current answer helps avoiding this.
– root
Dec 14 '12 at 17:21
...
Deleting lines from one file which are in another file
... 1 2 100000); do echo "$i"; done|sort --random-sort > file2
$ time ruby test.rb > ruby.test
real 0m0.639s
user 0m0.554s
sys 0m0.021s
$time sort file1 file2|uniq -u > sort.test
real 0m2.311s
user 0m1.959s
sys 0m0.040s
$ diff <(sort -n ruby.test) <(sort -n sort....
Understanding offsetWidth, clientWidth, scrollWidth and -Height, respectively
...dth/offsetHeight.
Then, to prove the theory right or wrong, you need some tests.
That's what I did here: https://github.com/lingtalfi/dimensions-cheatsheet
It's testing for chrome53, ff49, safari9, edge13 and ie11.
The results of the tests prove that the theory is generally right.
For the tests, ...
How to find first element of array matching a boolean condition in JavaScript?
...hat index) it was met. So we have to amend it a little:
function find(arr, test, ctx) {
var result = null;
arr.some(function(el, i) {
return test.call(ctx, el, i, arr) ? ((result = el), true) : false;
});
return result;
}
var result = find(someArray, isNotNullNorUndefined);...
C# - How to get Program Files (x86) on Windows 64 bit
...
Why this test : 8 == IntPtr.Size ?
– Florian
Oct 7 '11 at 11:30
1
...
Python read-only property
...y
... def a(self):
... return self._a
...
>>> a = A('test')
>>> a.a
'test'
>>> a.a = 'pleh'
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: can't set attribute
...
C++STL容器使用经验总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...
第17条：使用“swap技巧”出去多余的容量。
vector<Contestant>(contestants).swap(contestants);
表达式vector<Contestant>(contestants)创建一个临时的矢量，它是contestants的拷贝：这是由 vector的拷贝构造函数来完成的。然而，vector的拷贝构造函...