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Why do we need argc while there is always a null at the end of argv?
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106
Yes, argv[argc]==NULL is guaranteed. See C11 5.1.2.2.1 Program startup (my emphasis)
If th...
bool operator ++ and --
...1) or true (if the integral value is anything else - notably this includes 0 [false] and 2 or more [true]).
So as a short-hand ++ worked, and -- didn't.
++ is allowed on bools for compatibility with this, but its use is deprecated in the standard and it was removed in C++17.
This assumes that I onl...
$(this) inside of AJAX success not working
...und to. Learn more about how this works in JavaScript.
Solutions
If ES2015+ is available to you, then using an arrow function would probably be the simplest option:
$.ajax({
//...
success: (json) => {
// `this` refers to whatever `this` refers to outside the function
}
}...
Checking if a variable is not nil and not zero in ruby
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unless discount.nil? || discount == 0
# ...
end
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How to grab substring before a specified character jQuery or JavaScript
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var streetaddress= addy.substr(0, addy.indexOf(','));
While it's not the best place for definitive information on what each method does (mozilla developer network is better for that) w3schools.com is good for introducing you to syntax.
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How to center align the ActionBar title in Android?
...r().setCustomView(R.layout.abs_layout);
abs_layout:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
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Knockout.js bound input value not updated when I use jquery .val('xyz')
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answered Aug 11 '11 at 0:41
RP NiemeyerRP Niemeyer
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Create dynamic URLs in Flask with url_for()
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answered Sep 20 '11 at 0:02
FogleBirdFogleBird
61.9k2323 gold badges117117 silver badges127127 bronze badges
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Can I click a button programmatically for a predefined intent?
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edited May 14 '13 at 10:01
laalto
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answe...
setup cron tab to specific time of during weekdays
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Same as you did for hours:
*/2 09-18 * * 1-5 /path_to_script
0 and 7 stand for Sunday
6 stands for Saturday
so, 1-5 means from Monday to Friday
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