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Fastest way to determine if an integer's square root is an integer
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How to validate an Email in PHP?
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You can use the filter_var() function, which gives you a lot of handy validation and sanitizat...
MySQL: Insert record if not exists in table
...able_listnames` (
`id` int(11) NOT NULL auto_increment,
`name` varchar(255) NOT NULL,
`address` varchar(255) NOT NULL,
`tele` varchar(255) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB;
Insert a record:
INSERT INTO table_listnames (name, address, tele)
SELECT * FROM (SELECT 'Rupert', 'S...
Inline labels in Matplotlib
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Nice question, a while ago I've experimented a bit with this, but haven't used it a lot because...
Why are Python lambdas useful? [closed]
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26 Answers
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How to use if - else structure in a batch file?
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Your syntax is incorrect. You can't use ELSE IF. It appears that you don't really need it anyway...
How to redirect stderr and stdout to different files in the same line in script?
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Just add them in one line command 2>> error 1>> output
However, note that >>...
getMinutes() 0-9 - How to display two digit numbers?
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20 Answers
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R - Concatenate two dataframes?
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You want "rbind".
b$b <- NA
new <- rbind(a, b)
rbind requires the data frames to have...
Why does this iterative list-growing code give IndexError: list assignment index out of range?
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j is an empty list, but you're attempting to write to element [0] in the first iteration, which...