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nodejs how to read keystrokes from stdin
...tdin in the parent process (node app won't quit all by itself
// unless an error or process.exit() happens)
stdin.resume();
// i don't want binary, do you?
stdin.setEncoding( 'utf8' );
// on any data into stdin
stdin.on( 'data', function( key ){
// ctrl-c ( end of text )
if ( key === '\u0003' ...
Only get hash value using md5sum (without filename)
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How come echo ($(echo -n foo | md5sum)) doesn't work? Errors out bash: syntax error near unexpected token $(echo -n foo | md5sum)'
– lkraav
Aug 26 '15 at 4:42
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Recursive file search using PowerShell
...witch:
Get-ChildItem -Path V:\Myfolder -Filter CopyForbuild.bat -Recurse -ErrorAction SilentlyContinue -Force
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How to make good reproducible pandas examples
...owscitation needed, and I bet I can do it in 5 rows. Can you reproduce the error with df = df.head(), if not fiddle around to see if you can make up a small DataFrame which exhibits the issue you are facing.
* Every rule has an exception, the obvious one is for performance issues (in which case de...
Do I encode ampersands in ?
... then a semicolon. That ampersand is now ambiguous, and will cause a parse error.
– matty
Aug 10 '15 at 0:12
As Jukka ...
How can I filter a date of a DateTimeField in Django?
...ised it got 4 upvotes, because when I try the contains solution, I get the error message: Unable to get repr for <class 'django.db.models.query.QuerySet'>
– Houman
Jan 13 '13 at 13:13
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How to throw a C++ exception
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Just add throw where needed, and try block to the caller that handles the error. By convention you should only throw things that derive from std::exception, so include <stdexcept> first.
int compare(int a, int b) {
if (a < 0 || b < 0) {
throw std::invalid_argument("a or b n...
addEventListener vs onclick
...onevent property back to its initial state (i.e. null).
Doesn't respond to errors appropriately. For example, if you by mistake assign a string to window.onload, for example: window.onload = "test";, it won't throw any errors. Your code wouldn't work and it would be really hard to find out why. .add...
Retrieve column names from java.sql.ResultSet
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Tried it on a teradata database and got the error "[Teradata Database] [TeraJDBC 16.20.00.02] [Error 9719] [SQLState HY000] QVCI feature is disabled."
– josepainumkal
Oct 10 '19 at 18:29
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linux: kill background task
... job. If a prefix matches more than one job, bash
reports an error. Using %?ce, on the other hand, refers to any job containing the string ce in its command line. If the
substring matches more than one job, bash reports an error. The symbols %% and %+ refer to the shell's n...