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Reset select2 value and show placeholder
... but when I choose a new value (post reset), I also see selected an "empty string" option (i.e., a box with only an "x" in it).
– kounoupis
Mar 4 '16 at 16:14
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What is the equivalent of “none” in django templates?
...all are available within template tags and filters. None, False, the empty string ('', "", """""") and empty lists/tuples all evaluate to False when evaluated by if, so you can easily do
{% if profile.user.first_name == None %}
{% if not profile.user.first_name %}
A hint: @fabiocerqueira is right...
How to get jQuery dropdown value onchange event
...nswered Nov 12 '13 at 7:00
power_scriptorpower_scriptor
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Understanding the Use of ColorMatrix and ColorMatrixColorFilter to Modify a Drawable's Hue
...working on a UI for an app, and I'm attempting to use grayscale icons, and allow the user to change the theme to a color of their choosing. To do this, I'm trying to just apply a ColorFilter of some sort to overlay a color on top of the drawable. I've tried using PorterDuff.Mode.MULTIPLY, and it wor...
How to analyze a java thread dump?
I am trying to understand more about java, especially about memory management and threads.
For this reason I have recently found interest in looking at thread dumps.
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How to securely store access token and secret in Android?
...Runner"
// Create BuildConfig variables
buildConfigField "String", "ACCESS_TOKEN", keystoreProperties["ACCESS_TOKEN"]
buildConfigField "String", "SECRET", keystoreProperties["SECRET"]
}
}
You can use your Access Token and Secret in your code like this:
String accessTok...
Android- create JSON Array and JSON Object
...entsObj = new JSONObject();
studentsObj.put("Students", jsonArray);
String jsonStr = studentsObj.toString();
System.out.println("jsonString: "+jsonStr);
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String concatenation does not work in SQLite
...entation:
The || operator is "concatenate" - it joins together the two strings of its operands.
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Pandas groupby: How to get a union of strings
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In [4]: df = read_csv(StringIO(data),sep='\s+')
In [5]: df
Out[5]:
A B C
0 1 0.749065 This
1 2 0.301084 is
2 3 0.463468 a
3 4 0.643961 random
4 1 0.866521 string
5 2 0.120737 !
In [6]: df.dtype...
Iterating a JavaScript object's properties using jQuery
... value passed in as arguments. In my example the parameter "n" are the two string "John" and "JS". The "name" property would be "undefined".
– Tim Büthe
May 27 '11 at 11:23
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