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In Python, how do I index a list with another list?
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A functional approach:
a = [1,"A", 34, -123, "Hello", 12]
b = [0, 2, 5]
from operator import itemgetter
print(list(itemgetter(*b)(a)))
[1, 34, 12]
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impro...
How can I remove all text after a character in bash?
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@kp123: It's the first example in my answer. The second time I show it (where "tomorrow" is removed), it's almost exactly the situation you're asking about.
– Paused until further notice.
A...
REST URI convention - Singular or plural name of resource while creating it
...ll likely error, as this request doesn't make any sense, whereas /resource/123 makes perfect sense.
Using /resource instead of /resources is similar to how you would do this if you were working with, say, a file system and a collection of files and /resource is the "directory" with the individual 1...
Application auto build versioning
...ice that full package name is required. go build -ldflags "-X pkg.version=123" won't work while go build -ldflags "-X path/to/pkg.version=123" work as expected. hope it helps.
– csyangchen
Nov 25 '15 at 9:04
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(Built-in) way in JavaScript to check if a string is a valid number
...rns true if the variable does NOT contain a valid number
Examples
isNaN(123) // false
isNaN('123') // false
isNaN('1e10000') // false (This translates to Infinity, which is a number)
isNaN('foo') // true
isNaN('10px') // true
Of course, you can negate this if you need...
Inserting multiple rows in mysql
...ship) table :
// get data
$table_1 = get_table_1_rows();
$table_2_fk_id = 123;
// prepare first part of the query (before values)
$query = "INSERT INTO `table` (
`table_1_fk_id`,
`table_2_fk_id`,
`insert_date`
) VALUES ";
//loop the table 1 to get all foreign keys and put it in array
for...
Format date and time in a Windows batch script
...: 20140.01_131612 , must be(2014.10.26_131612)
– waza123
Oct 26 '14 at 11:16
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Save modifications in place with awk
...ace.awk include file to invoke the extension properly like so:
$ cat file
123 abc
456 def
789 hij
$ gawk -i inplace '{print $1}' file
$ cat file
123
456
789
The variable INPLACE_SUFFIX can be used to specify the extension for a backup file:
$ gawk -i inplace -v INPLACE_SUFFIX=.bak '{print $1}'...
Output first 100 characters in a string
...o handle this. Here are some examples.
The formatting code '%s' converts '12345' to a string, but it's already a string.
>>> '%s' % '12345'
'12345'
'%.3s' specifies to use only the first three characters.
>>> '%.3s' % '12345'
'123'
'%.7s' says to use the first seven charac...
How to convert std::string to lower case?
...aracters allowed in the french language. For instance a string 'Test String123. É Ï\n' will be converted to : 'test string123. É Ï\n' although characters É Ï and their lower case couterparts 'é' and 'ï', are allowed in french. It seems that no solution for that was provided by other message...