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How do I remove blank elements from an array?
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511
There are many ways to do this, one is reject
noEmptyCities = cities.reject { |c| c.empty? }
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TFS checkin error - could not find file
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edited Dec 17 '16 at 12:19
jessehouwing
83.1k1717 gold badges203203 silver badges278278 bronze badges
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Datatables: Cannot read property 'mData' of undefined
...s)
<table id="sample-table">
<tr>
<th>title-1</th>
<th>title-2</th>
</tr>
<tr>
<td>data-1</td>
<td>data-2</td>
</tr>
</table>
The following will also throw an error ...
How to check size of a file using Bash?
...n easier way to check for file sizes instead. I.e. file.txt is normally 100k; how to make a script check if it is less than 90k (including 0), and make it do wget a new copy because the file is corrupt in this case.
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Restrict varchar() column to specific values?
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128
Have you already looked at adding a check constraint on that column which would restrict value...
How to add a filter class in Spring Boot?
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162
If you want to setup a third-party filter you can use FilterRegistrationBean.
For example the ...
SQL how to increase or decrease one for a int column in one command
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To answer the first:
UPDATE Orders SET Quantity = Quantity + 1 WHERE ...
To answer the second:
There are several ways to do this. Since you did not specify a database, I will assume MySQL.
INSERT INTO table SET x=1, y=2 ON DUPLICATE KEY UPDATE x=x+1, y=y+2
REPLACE INTO table SET ...
delete_all vs destroy_all?
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edited May 23 '17 at 12:26
Community♦
111 silver badge
answered Jul 14 '11 at 18:36
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How to silence output in a Bash script?
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189
If it outputs to stderr as well you'll want to silence that. You can do that by redirecting fi...
What is the difference between tinyint, smallint, mediumint, bigint and int in MySQL?
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581
They take up different amounts of space and they have different ranges of acceptable values.
He...