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Extract a number from a string (JavaScript)
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606
For this specific example,
var thenum = thestring.replace( /^\D+/g, ''); // replace all leadi...
Find the nth occurrence of substring in a string
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answered Dec 10 '09 at 21:26
bobincebobince
485k9999 gold badges611611 silver badges797797 bronze badges
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Create Pandas DataFrame from a string
...that to the pandas.read_csv function. E.g:
import sys
if sys.version_info[0] < 3:
from StringIO import StringIO
else:
from io import StringIO
import pandas as pd
TESTDATA = StringIO("""col1;col2;col3
1;4.4;99
2;4.5;200
3;4.7;65
4;3.2;140
""")
df = pd.read_csv(TEST...
For loop example in MySQL
...ot null auto_increment primary key,
val smallint unsigned not null default 0
)
engine=innodb;
drop procedure if exists load_foo_test_data;
delimiter #
create procedure load_foo_test_data()
begin
declare v_max int unsigned default 1000;
declare v_counter int unsigned default 0;
truncate table f...
How do I print the elements of a C++ vector in GDB?
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80
To view vector std::vector myVector contents, just type in GDB:
(gdb) print myVector
This wil...
What regular expression will match valid international phone numbers?
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\+(9[976]\d|8[987530]\d|6[987]\d|5[90]\d|42\d|3[875]\d|
2[98654321]\d|9[8543210]|8[6421]|6[6543210]|5[87654321]|
4[987654310]|3[9643210]|2[70]|7|1)\d{1,14}$
Is the correct format for matching a generic international phone number. I replaced t...
Pandas selecting by label sometimes return Series, sometimes returns DataFrame
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102
Granted that the behavior is inconsistent, but I think it's easy to imagine cases where this is...
Lost connection to MySQL server at 'reading initial communication packet', system error: 0
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107
Someone here suggests that it might be a firewall problem:
I have just had this problem and...
glVertexAttribPointer clarification
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210
Some of the terminology is a bit off:
A Vertex Array is just an array (typically a float[]) th...
CSS border less than 1px [duplicate]
The default border:1px is too big. However, border: 0.5px solid; is not working.
Is there a CSS solution that would make the border half the size?
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