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How to perform file system scanning
... will not work for release versions of GO in the near future.
There's actually a function in the standard lib just for this: filepath.Walk.
package main
import (
"path/filepath"
"os"
"flag"
)
type visitor int
// THIS CODE NO LONGER WORKS, PLEASE SEE ABOVE
func (v visitor) VisitDir(p...
Using global variables in a function
... contrary to some OOP zealots who claim otherwise - especially for smaller scripts, where OOP is overkill.
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Adding n hours to a date in Java?
... edited Mar 29 '18 at 8:27
Script47
12.4k44 gold badges3636 silver badges5858 bronze badges
answered Aug 27 '10 at 4:40
...
How to open a new window on form submit
...
No need for Javascript, you just have to add a target="_blank" attribute in your form tag.
<form target="_blank" action="http://example.com"
method="post" id="mc-embedded-subscribe-form"
name="mc-embedded-subscribe-form" class="validate"
>
...
C++ Dynamic Shared Library on Linux
...were for a plugin system, you would use MyClass as a base class and define all the required functions virtual. The plugin author would then derive from MyClass, override the virtuals and implement create_object and destroy_object. Your main application would not need to be changed in any way.
...
How do I use the lines of a file as arguments of a command?
...u couldn't iterate over each line individually. For that you could write a script with a 'for' loop:
for line in `cat input_file`; do some_command "$line"; done
Or (the multi-line variant):
for line in `cat input_file`
do
some_command "$line"
done
Or (multi-line variant with $() instead of...
Compare two DataFrames and output their differences side-by-side
...original question
The first step is to concatenate the DataFrames horizontally with the concat function and distinguish each frame with the keys parameter:
df_all = pd.concat([df.set_index('id'), df2.set_index('id')],
axis='columns', keys=['First', 'Second'])
df_all
It's pr...
Using an image caption in Markdown Jekyll
...ere! I am not quite sure where and how to put the CSS part...it would be really great if anyone could help.
– ChriiSchee
Apr 10 '19 at 13:50
2
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How to change the Push and Pop animations in a navigation based app
...t common, everyday transitions (such as an ordinary slide), you do have to all the work of implementing a full custom transition.
Here's how to do it ...
1. You need a custom UIViewControllerAnimatedTransitioning
You need a bool of your own like popStyle . (Is it popping on, or popping off?)
You m...
How to use multiple AWS Accounts from the command line?
...
You can write shell script to set corresponding values of environment variables for each account based on user input. Doing so, you don't need to create any aliases and, furthermore, tools like ELB tools, Auto Scaling Command Line Tools will wor...