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What is the best way to test for an empty string in Go?
...tever, since len() has to execute to completion.
– Richard
Apr 30 '18 at 11:25
Have you looked at the code generation ...
Unioning two tables with different number of columns
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Add extra columns as null for the table having less columns like
Select Col1, Col2, Col3, Col4, Col5 from Table1
Union
Select Col1, Col2, Col3, Null as Col4, Null as Col5 from Table2
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Convert special characters to HTML in Javascript
Does any one know how to convert special characters to HTML in Javascript ?
26 Answers
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How to disable/enable select field using jQuery?
...gt;
<label for="pizza">I would like to order a</label>
<select id="pizza_kind" name="pizza_kind">
<option>(choose one)</option>
<option value="margaritha">Margaritha</option>
<option value="hawai">Hawai</option>
</select>
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How do I change selected value of select2 dropdown with JqGrid?
I'm using Oleg's select2 demo , but I am wondering whether it would be possible to change the currently selected value in the dropdown menu.
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ASP.NET Identity reset password
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Thank you for your answer. It works like a charm for me.
– Thomas.Benz
Mar 16 '17 at 13:43
4
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Replace console output in Python
...t of the bar.
def startprogress(title):
"""Creates a progress bar 40 chars long on the console
and moves cursor back to beginning with BS character"""
global progress_x
sys.stdout.write(title + ": [" + "-" * 40 + "]" + chr(8) * 41)
sys.stdout.flush()
progress_x = 0
def pr...
Grep characters before and after match?
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3 characters before and 4 characters after
$> echo "some123_string_and_another" | grep -o -P '.{0,3}string.{0,4}'
23_string_and
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How to request a random row in SQL?
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See this post: SQL to Select a random row from a database table. It goes through methods for doing this in MySQL, PostgreSQL, Microsoft SQL Server, IBM DB2 and Oracle (the following is copied from that link):
Select a random row with MySQL:
SELE...
DISTINCT for only one column
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If you are using SQL Server 2005 or above use this:
SELECT *
FROM (
SELECT ID,
Email,
ProductName,
ProductModel,
ROW_NUMBER() OVER(PARTITION BY Email ORDER BY ...