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How to preserve line breaks when storing a command output to a variable in bash?
... (one of which is a newline). Then, before invoking echo shell splits that string into multiple arguments using the Internal Field Separator (IFS), and passes that resulting list of arguments to echo. By default, the IFS is set to whitespace (spaces, tabs, and newlines), so the shell chops your $TEM...
Getting the return value of Javascript code in Selenium
...
To return a value, simply use the return JavaScript keyword in the string passed to the execute_script() method, e.g.
>>> from selenium import webdriver
>>> wd = webdriver.Firefox()
>>> wd.get("http://localhost/foo/bar")
>>> wd.execute_script("return 5")
...
How to convert byte array to Bitmap
...o store image in SQLite DataBase .
I tried to store it using BLOB and String , in both cases it store the
image and can retrieve it but when i convert it to Bitmap using
BitmapFactory.decodeByteArray(...) it return null.
...
How to do a newline in output
...ems that both Ruby and PHP do not expand escape sequences in single quoted strings.
– kjagiello
Dec 31 '13 at 15:02
2
...
Android: Bitmaps loaded from gallery are rotated in ImageView
...rsor cursor = context.getContentResolver().query(photoUri,
new String[] { MediaStore.Images.ImageColumns.ORIENTATION }, null, null, null);
if (cursor.getCount() != 1) {
return -1;
}
cursor.moveToFirst();
return cursor.getInt(0);
}
And then you can get a rotate...
Python debugging tips [closed]
... will function as a breakpoint.
>>> import pdb
>>> a="a string"
>>> pdb.set_trace()
--Return--
> <stdin>(1)<module>()->None
(Pdb) p a
'a string'
(Pdb)
To continue execution use c (or cont or continue).
It is possible to execute arbitrary Python expres...
MySQL IF NOT NULL, then display 1, else display 0
...eturns 0. Thus, you have to remember to explicitly check for NULL or empty string:
select if(name is null or name = '', 0, 1)
PS Eugen's example up above is correct, but I wanted to clarify this nuance as it caught me by surprise.
...
Iterator invalidation rules
...
can we also have a listing for std::string? I think it's different from std::vector due to SSO
– sp2danny
Jan 18 '19 at 12:16
1
...
Numpy: find first index of value fast
... a benchmark for several methods:
argwhere
nonzero as in the question
.tostring() as in @Rob Reilink's answer
python loop
Fortran loop
The Python and Fortran code are available. I skipped the unpromising ones like converting to a list.
The results on log scale. X-axis is the position of the nee...
Why not be dependently typed?
...le technique is not the same. Suppose you have a function Vec Zy -> IO String. You can't use it with withZeroes, because the type Zy can't be unified with forall n. Maybe you can work around that for one or two special cases, but it quickly gets out of hand.
– John L
...