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Getting the name of a variable as a string
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How can I convert the “arguments” object to an array in JavaScript?
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ES6 usi...
PL/SQL, how to escape single quote in a string?
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edited Jul 3 '12 at 16:51
answered Jul 3 '12 at 16:38
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The differences between .build, .create, and .create! and when should they be used?
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There are a couple differences, but they're not big:
.create is equivalent to .new followed b...
How to make a select with array contains value clause in psql
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Limit labels number on Chart.js line chart
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edited Jan 30 '17 at 16:27
reformed
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SQL JOIN - WHERE clause vs. ON clause
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LEFT JOIN OrderLines ON OrderLines.OrderID=Orders.ID
WHERE Orders.ID = 12345
and
SELECT *
FROM Orders
LEFT JOIN OrderLines ON OrderLines.OrderID=Orders.ID
AND Orders.ID = 12345
The first will return an order and its lines, if any, for order number 12345. The second will return all order...
Is it valid to have a tag inside another tag?
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Use of ~ (tilde) in R programming Language
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edited Nov 3 '17 at 13:10
SnowFrog
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Left-pad printf with spaces
...llowing.
char *ptr = "Hello";
printf("%40s\n", ptr);
That will give you 35 spaces, then the word "Hello". This is how you format stuff when you know how wide you want the column, but the data changes (well, it's one way you can do it).
If you know you want exactly 40 spaces then some text, just...