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What are all the common ways to read a file in Ruby?
..., x }
or
File.foreach('testfile') {|x| print "GOT", x }
File inherits from IO, and foreach is in IO, so you can use either.
I have some benchmarks showing the impact of trying to read big files via read vs. line-by-line I/O at "Why is "slurping" a file not a good practice?".
...
Are PHP functions case sensitive?
...
I am quoting from this:
Note: Function names are
case-insensitive, though it is usually
good form to call functions as they
appear in their declaration.
So, its looks like user-defined functions are not case-sensitive, there w...
Command substitution: backticks or dollar sign / paren enclosed? [duplicate]
...hangeable, well, I'd say that, in general, they are interchangeable, apart from the exceptions you mentioned for escaped characters. However, I don't know and cannot say whether all modern shells and all modern *nixes support both forms. I doubt that they do, especially older shells/older *nixes. If...
How do I work around JavaScript's parseInt octal behavior?
...
From the parseInt documentation, use the optional radix argument to specify base-10:
parseInt('08', 10); //equals 8
parseInt('09', 10); //equals 9
This strikes me as pedantic, confusing, and verbose (really, an extra argum...
How to scroll up or down the page to an anchor using jQuery?
...e. When you use <a name="something"></a>, you can reference it from outside as well however, your solution does not provide that.
– Ramtin
Oct 6 '18 at 22:46
add a...
Set breakpoint in C or C++ code programmatically for gdb on Linux
...
In a project I work on, we do this:
raise(SIGABRT); /* To continue from here in GDB: "signal 0". */
(In our case we wanted to crash hard if this happened outside the debugger, generating a crash report if possible. That's one reason we used SIGABRT. Doing this portably across Windows, Mac,...
Reading output of a command into an array in Bash
...d. It's cleaner and more semantically correct. Note that this is different from printf '', which doesn't output anything. printf '\0' prints a null byte, needed by read to happily stop reading there (remember the -d '' option?).
If you can, i.e., if you're sure your code will run on Bash≥4, u...
Java equivalent to C# extension methods
...n methods can make code much more elegant compared to extra static methods from some other class. Almost all more modern languages allow for some kind existing class extension: C#, php, objective-c, javascript. Java surely shows its age here. Imagine you want to write a JSONObject to disk. Do you ca...
How do I draw a grid onto a plot in Python?
... python
#-*- coding: utf-8 -*-
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk
from matplotlib.figure import Figure
from matplotlib.backends.backend_gtk3agg import FigureCanvasGTK3Agg as FigureCanvas
win = Gtk.Window()
win.connect("delete-event", Gtk.main_quit)
win.set_tit...
Split files using tar, gz, zip, or bzip2 [closed]
...a different directory for the resulting files. btw if the archive consists from only a single file, tar could be avoided and only gzip used:
# create archives
$ gzip -c my_large_file | split -b 1024MiB - myfile_split.gz_
# uncompress
$ cat myfile_split.gz_* | gunzip -c > my_large_file
For wind...