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Install NPM into home directory with distribution nodejs package (Ubuntu)
I'd like to use the distribution Node.js packages (or the chris-lea ppa for more recent releases) but install NPM to my home directory.
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Convert char to int in C and C++
...etc, you can write
char a = '4';
int ia = a - '0';
/* check here if ia is bounded by 0 and 9 */
Explanation:
a - '0' is equivalent to ((int)a) - ((int)'0'), which means the ascii values of the characters are subtracted from each other. Since 0 comes directly before 1 in the ascii table (and so on...
Check if pull needed in Git
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First use git remote update, to bring your remote refs up to date. Then you can do one of several things, such as:
git status -uno will tell you whether the branch you are tracking is ahead, behind or has diverged. If it says nothing, the local and remote...
How can I have a newline in a string in sh?
...STR" # quotes are required here!
Hello
World
Here is an excerpt from the Bash manual page:
Words of the form $'string' are treated specially. The word expands to
string, with backslash-escaped characters replaced as specified by the
ANSI C standard. Backslash escape sequences, if pr...
How do I fix the indentation of an entire file in Vi?
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=, the indent command can take motions. So, gg to get the start of the file, = to indent, G to the end of the file, gg=G.
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How to grep Git commit diffs or contents for a certain word?
In a Git code repository I want to list all commits that contain a certain word. I tried this
8 Answers
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Regular Expression to reformat a US phone number in Javascript
I'm looking to reformat (replace, not validate - there are many references for validating) a phone number for display in Javascript. Here's an example of some of the data:
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Vim indent xml file
I am learning Vim but I thought this was a simple task but I cannot get it to work. I have browser SO but the solutions are not working for me.
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Python Progress Bar
How do I use a progress bar when my script is doing some task that is likely to take time?
33 Answers
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async/await - when to return a Task vs void?
...ave a void return type (for events). If there's no reason to disallow having the caller await your task, why disallow it?
2) async methods that return void are special in another aspect: they represent top-level async operations, and have additional rules that come into play when your task returns ...