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Why use pointers? [closed]
I know this is a really basic question, but I've just started with some basic C++ programming after coding a few projects with high-level languages.
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Better way to check if a Path is a File or a Directory?
I am processing a TreeView of directories and files. A user can select either a file or a directory and then do something with it. This requires me to have a method which performs different actions based on the user's selection.
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How many bytes does one Unicode character take?
I am a bit confused about encodings. As far as I know old ASCII characters took one byte per character. How many bytes does a Unicode character require?
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Extract a dplyr tbl column as a vector
Is there a more succinct way to get one column of a dplyr tbl as a vector, from a tbl with database back-end (i.e. the data frame/table can't be subset directly)?
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How can I check file size in Python?
I am writing a Python script in Windows. I want to do something based on the file size. For example, if the size is greater than 0, I will send an email to somebody, otherwise continue to other things.
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Can I use a binary literal in C or C++?
I need to work with a binary number.
19 Answers
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Style disabled button with CSS
I'm trying to change the style of a button with an embedded image as seen in the following Fiddle:
11 Answers
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How to check if a variable is not null?
I know that below are the two ways in JavaScript to check whether a variable is not null , but I’m confused which is the best practice to use.
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When to use Vanilla JavaScript vs. jQuery?
I have noticed while monitoring/attempting to answer common jQuery questions, that there are certain practices using javascript, instead of jQuery, that actually enable you to write less and do ... well the same amount. And may also yield performance benefits.
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How can I use xargs to copy files that have spaces and quotes in their names?
I'm trying to copy a bunch of files below a directory and a number of the files have spaces and single-quotes in their names. When I try to string together find and grep with xargs , I get the following error:
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