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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR
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It causes due to retaining the self in the block. Block will accessed from self, and self is referred in block. this will create a retain cycle.
Try solving this by create a weak refernce of self
__weak typeof(self) weakSelf = self;
operationManager = [[AFHTTPRequestOperation alloc] initWith...
How to split a large text file into smaller files with equal number of lines?
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split (from GNU coreutils, since version 8.8 from 2010-12-22) includes the following parameter:
-n, --number=CHUNKS generate CHUNKS output files; see explanation b
AddRange to a Collection
... me today how to add a range to a collection. He has a class that inherits from Collection<T> . There's a get-only property of that type that already contains some items. He wants to add the items in another collection to the property collection. How can he do so in a C#3-friendly fashion? (...
How to import module when module name has a '-' dash or hyphen in it?
... = __import__('foo-bar')
globals().update(vars(tmp))
---- main.py ----
from foo_proxy import *
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minimize app to system tray
...complish the entire solution. The answer above fails to remove the window from the task bar.
private void ImportStatusForm_Resize(object sender, EventArgs e)
{
if (this.WindowState == FormWindowState.Minimized)
{
notifyIcon.Visible = true;
notifyIcon.ShowBalloonTip(3000);
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try/catch versus throws Exception
...lass Base {
public void show()
{
System.out.println("hello from base");
}
}
and it's derived class:
package trycatchvsthrows;
public class Derived extends Base {
@Override
public void show() {
// TODO Auto-generated method stub
super.show();
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How to throw a C++ exception
...m exceptions make more sense then go for it. You may still want to derive from std::exception and keep the interface the same.
– nsanders
Dec 12 '11 at 21:02
2
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Does delete on a pointer to a subclass call the base class destructor?
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shared_array is from boost only, yes?
– Dronz
May 21 '18 at 22:47
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Split string every nth character?
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There is already an inbuilt function in python for this.
>>> from textwrap import wrap
>>> s = '1234567890'
>>> wrap(s, 2)
['12', '34', '56', '78', '90']
This is what the docstring for wrap says:
>>> help(wrap)
'''
Help on function wrap in module textwrap:...
Regular Expression to get a string between parentheses in Javascript
...Each(x => {
const matches = [...x.matchAll(rx)];
console.log( Array.from(matches, m => m[0]) ); // All full match values
console.log( Array.from(matches, m => m[1]) ); // All Group 1 values
});
Legacy JavaScript code demo (ES5 compliant):
var strs = ["I expect five hundred d...