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Convert string with comma to integer
...converting dollars and cents to cents. This method will avoid any rounding errors that might crop up unexpectedly when dealing with floating-point numbers. When a currency amount needs to be shown to the user, the cent amount can be converted to dollars and cents. (Though that is not what the questi...
Delete files or folder recursively on Windows CMD
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This command is not working and throwing error as below D:\>rd /s /q "D:\Root a" The system cannot find the file specified.
– abhayk
Aug 31 '16 at 6:07
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What's the best way of scraping data from a website? [closed]
... be invaluable. Reverse engineering tasks like this are a lot of trial and error so you will want a workflow that makes this easy.
Language
PHP is basically out, it's not well suited for this task and the library/framework support is poor in this area. Python (Scrapy is a great starting point) and...
Are PDO prepared statements sufficient to prevent SQL injection?
...en I do that. One problem is that emulated prepares will only throw syntax errors on execute, but true prepares will throw errors on prepare. So that can cause issues (and is part of the reason tests are borking).
share
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Understanding the meaning of the term and the concept - RAII (Resource Acquisition is Initialization
...ata(FileHandle("C:\\source"), FileHandle("C:\\dest"));
}
There are three error cases to handled: no file can be opened, only one file can be opened, both files can be opened but copying the files failed. In a non-RAII implementation, Foo would have to handle all three cases explicitly.
RAII rel...
How to strip leading “./” in unix “find”?
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Better with 2> /dev/null to ignore error reported when the command is run in an empty directory.
– neevek
Dec 17 '16 at 6:13
add a comm...
How to reset (clear) form through JavaScript?
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I get next error: TypeError: document.getElementById(...).reset is not a function[Learn More]. I use FormValidate plugin for form. its resetForm does not reset form too =( Any suggestions?
– Eugen Konkov
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What is a magic number, and why is it bad? [closed]
...curacy) usually means the symbolic identifier or constant is less prone to error. Recognition of "Pi" as a name is a simply a convenient bonus, but is not the primary reason for having the constant.
Meanwhile: Back at the Ranch
Laying aside common constants like Pi, let's focus primarily on number...
How to Git stash pop specific stash in 1.8.3?
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Not working for me. Getting error "unknown option: -encodedCommand"
– Yuvraj Patil
Mar 12 '18 at 6:30
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What optimizations can GHC be expected to perform reliably?
...Right x
As an extended example, take this definition of last:
last [] = error "last: empty list"
last (x:[]) = x
last (x:x2:xs) = last (x2:xs)
We first transform it to
last_nil = error "last: empty list"
last_cons x [] = x
last_cons x (x2:xs) = last (x2:xs)
{-# INLINE last #-}
last [] = last_...