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Use of 'use utf8;' gives me 'Wide character in print'
...se UTF8, then it will interpret those three bytes as your single character and that is what is displayed.
If we add in the utf8 module, things are different. In this case, Perl interprets your string as just two characters.
$ perl -Mutf8 -E 'say join ":", map { ord } split //, "鸡\n";'
40481:10
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How do you create a dictionary in Java? [closed]
...o implement a dictionary (as in the physical book). I have a list of words and their meanings.
4 Answers
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How do I remove deleted branch names from autocomplete?
... git branch -d myBranch to delete a branch. However, when I am on master and try to checkout a new branch with git checkout , myBranch still appears in the tab-autocomplete.
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How to set headers in http get request?
...ge has many functions that deal with headers. Among them are Add, Del, Get and Set methods. The way to use Set is:
func yourHandler(w http.ResponseWriter, r *http.Request) {
w.Header().Set("header_name", "header_value")
}
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How to get min/max of two integers in Postgres/SQL?
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Have a look at GREATEST and LEAST.
UPDATE my_table
SET my_column = GREATEST(my_column - 10, 0);
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Remove blank lines with grep
I tried grep -v '^$' in Linux and that didn't work. This file came from a Windows file system.
14 Answers
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Encoding an image file with base64
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I'm not sure I understand your question. I assume you are doing something along the lines of:
import base64
with open("yourfile.ext", "rb") as image_file:
encoded_string = base64.b64encode(image_file.read())
You have to open the file first...
Check for internet connection availability in Swift
...I wanted a more pure Swift solution. The existing Apple Reachability class and other third party libraries seemed to be too complicated for me to translate to Swift. I Googled some more and I came across this article which shows a simple method to check for network availability. I set out to transla...
How do I find the number of arguments passed to a Bash script?
...rage of the numbers is: $avg" which helps me to get unkown numbers of args and do some math (you can edit the operand) Thanks for Dennis Williamson, I did it. I'm posting to code because it may be usefull for someone.
– kaan yılmaz
Mar 4 '16 at 11:28
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What's the 'environment' task in Rake?
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You can get access to your models, and in fact, your whole environment by making tasks dependent on the environment task. This lets you do things like run rake RAILS_ENV=staging db:migrate.
See "Custom Rake Tasks".
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