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how to get the last character of a string?
...
An elegant and short alternative, is the String.prototype.slice method.
Just by:
str.slice(-1);
A negative start index slices the string from length+index, to length, being index -1, the last character is extracted:
"abc".slice(-1)...
How do I define a method in Razor?
...cality. MVC isn't the only game in town. Some folks just like simple razor and URLRewrite as MVC is a lot to do for little benefit IMO
– Jason Sebring
Oct 28 '12 at 18:00
5
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How to ignore HTML element from tabindex?
...ential focus navigation.
Watch out though that this is a HTML5 feature and might not work with old browsers.
To be W3C HTML 4.01 standard (from 1999) compliant, tabindex would need to be positive.
Sample usage below in pure HTML.
<input />
<input tabindex="-1" placeholder="NoTa...
Android Spinner : Avoid onItemSelected calls during initialization
I created an Android application with a Spinner and a TextView . I want to display the selected item from the Spinner's drop down list in the TextView. I implemented the Spinner in the onCreate method so when I'm running the program, it shows a value in the TextView (before selecting an item ...
How do I put a border around an Android textview?
...t a shape drawable (a rectangle) as background for the view.
<TextView android:text="Some text" android:background="@drawable/back"/>
And rectangle drawable back.xml (put into res/drawable folder):
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangl...
Why does (“foo” === new String(“foo”)) evaluate to false in JavaScript?
...s boxed string object.
The === operator behaves differently on primitives and objects.
When comparing primitives (of the same type), === will return true if they both have the same value.
When comparing objects, === will return true only if they refer to the same object (comparing by reference). ...
Change values while iterating
... prints you completely different memory locations for the value from range and the actual
value in the slice:
0xf84000f010 vs. 0x7f095ed0bf68
0xf84000f014 vs. 0x7f095ed0bf68
0xf84000f018 vs. 0x7f095ed0bf68
So the only thing you can do is to either use pointers or the index, as already proposed ...
Unique fields that allow nulls in Django
...trings are equal to empty strings for uniqueness checks, under both Django and database rules.
You can force the admin interface to store NULL for an empty string by providing your own customized model form for Foo with a clean_bar method that turns the empty string into None:
class FooForm(forms....
SVG gradient using CSS
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So I created that gradient in a separate file, and used fill this way: fill: url(../js/gradient.svg#MyGradient);. Is this the right way?
– Hrishikesh Choudhari
Dec 27 '12 at 10:00
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How do you clear a stringstream variable?
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For all the standard library types the member function empty() is a query, not a command, i.e. it means "are you empty?" not "please throw away your contents".
The clear() member function is inherited from ios and is used to clear the err...