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Why should eval be avoided in Bash, and what should I use instead?
...printf "$1\n" "${@:2}"
}
function error
{
# Send the first element as one argument, and the rest of the elements as a combined argument.
# Arguments to println:
# 1 -> '\e[31mError (%d): %s\e[m'
# 2 -> "$1"
# 3 -> "${*:2}"
println '\e[31mError (%d): %s\e[m' "...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
... many times or where ever I use fn_1() ?
– TheCuriousOne
Nov 25 '16 at 11:22
6
Yes, the order of ...
How do I put a bunch of uncommitted changes aside while working on something else
...s basic functionality). My usual method was to create a new branch using clone, but there might be better ways.
4 Answers
...
How to move all files including hidden files into parent directory via *
... & Linux's answer to How do you move all files (including hidden) from one directory to another?. It shows solutions in Bash, zsh, ksh93, standard (POSIX) sh, etc.
You can use these two commands together:
mv /path/subfolder/* /path/ # your current approach
mv /path/subfolder/.* /path/ # t...
How do I correctly clone a JavaScript object?
...ult in extra, unwanted properties. This isn't a problem, since I'm copying one of my own literal-constructed objects.
70 An...
What are carriage return, linefeed, and form feed?
...preted in various ways.
The most common difference (and probably the only one worth worrying about) is lines end with CRLF on Windows, NL on Unix-likes, and CR on older Macs (the situation has changed with OS X to be like Unix). Note the shift in meaning from LF to NL, for the exact same character...
E731 do not assign a lambda expression, use a def
...aceback is still going to include the errant line number and source file. One might say "f" whereas the other says "lambda". Maybe the lambda error is easier to scan because it's not a single-character function name, or a poorly-named long name?
– g33kz0r
Feb...
Compare double to zero using epsilon
...
Assuming 64-bit IEEE double, there is a 52-bit mantissa and 11-bit exponent. Let's break it to bits:
1.0000 00000000 00000000 00000000 00000000 00000000 00000000 × 2^0 = 1
The smallest representable number greater than 1:
1.0000 00000000 00000000 00000000 00000000 00000000 00000001 × 2^0 ...
Using “Object.create” instead of “new”
...
With only one level of inheritance, your example may not let you see the real benefits of Object.create.
This methods allows you to easily implement differential inheritance, where objects can directly inherit from other objects.
On ...
Reference: What is variable scope, which variables are accessible from where and what are “undefined
What is "variable scope" in PHP? Are variables from one .php file accessible in another? Why do I sometimes get "undefined variable" errors?
...