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What is the best way to test for an empty string in Go?
... one that makes the code clear.
If I'm about to look at element x I typically write
len(s) > x, even for x == 0, but if I care about
"is it this specific string" I tend to write s == "".
It's reasonable to assume that a mature compiler will compile
len(s) == 0 and s == "" into the ...
Get Android Phone Model programmatically
...uld like to know if there is a way for reading the Phone Model programmatically in Android.
16 Answers
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Django South - table already exists
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Got it, thanks. It's actually migrate and not schemamigration, but your answer got me in the right direction.
– Steve
Jun 22 '10 at 7:17
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How to drop columns by name in a data frame
I have a large data set and I would like to read specific columns or drop all the others.
11 Answers
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Generate pdf from HTML in div using Javascript
...lement IDs are still done in jQuery style "#id", but it does not mean that all jQuery selectors are supported.
Therefore replacing '#ignorePDF' with class selectors like '.ignorePDF' did not work for me. Instead you will have to add the same handler for each and every element, which you want to ig...
In Unix, how do you remove everything in the current directory and below it?
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Because you are specifically matching a named directory and are thus less likely to delete something that you don't intend to delete.
– tvanfosson
May 4 '09 at 16:27
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How to convert SQL Query result to PANDAS Data Structure?
... that will do the job:
from pandas import DataFrame
df = DataFrame(resoverall.fetchall())
df.columns = resoverall.keys()
You can go fancier and parse the types as in Paul's answer.
share
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improv...
Getting the current Fragment instance in the viewpager
...o update the fragment that is currently visible. To update that I have to call a method which is in the fragment class. Can someone please suggest how to call that method?
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Cannot overwrite model once compiled Mongoose
...y have a schema defined, and then you are defining the schema again. Generally what you should do is instantiate the schema once, and then have a global object call it when it needs it.
For example:
user_model.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var userSchema...
How to resize Twitter Bootstrap modal dynamically based on the content
... of data, such as Youtube videos, Vimeo videos, text, Imgur pictures, etc. All of them have different heights and widths. All I have found while searching the Internet is changing the size to only one parameter. It has to be same as the content in the popup.
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