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(HTML) Download a PDF file instead of opening them in browser when clicked
... support seems to be enhanced for this feature, see: w3schools.com/tags/att_a_download.asp
– Daniel Resch
Aug 24 '19 at 21:51
...
Validating with an XML schema in Python
...et's create simplest validator.py
from lxml import etree
def validate(xml_path: str, xsd_path: str) -> bool:
xmlschema_doc = etree.parse(xsd_path)
xmlschema = etree.XMLSchema(xmlschema_doc)
xml_doc = etree.parse(xml_path)
result = xmlschema.validate(xml_doc)
return result...
Genymotion, “Unable to load VirtualBox engine.” on Mavericks. VBox is setup correctly
...s by installing VirtualBox 4.3.28 (https://www.virtualbox.org/wiki/Download_Old_Builds_4_3). The new 5.0.0 and 4.3.30 versions didn't work for me with Genymotion 2.5. None of the above solutions worked :(
It's also worth noting that at the time of writing, Genymotion's FAQ states the following:
...
How do I update/upsert a document in Mongoose?
...faults, setters, validators, middleware" mongoosejs.com/docs/api.html#model_Model.findOneAndUpdate
– kellen
Nov 6 '14 at 16:56
...
Correct Bash and shell script variable capitalization
...nt variables (PAGER, EDITOR, ...) and internal shell variables (SHELL, BASH_VERSION, ...) are capitalized. All other variable names should be lower case.
Remember that variable names are case-sensitive; this convention avoids accidentally overriding environmental and internal variables.
Keeping to...
CloudBase 拓展：App接入腾讯云 BaaS（Backend as a Service，后端即服务）...
...或文档数据库集合
objectId
MySQL id 或文档 _id
Insert
Insert 或 InsertDocs
Query
Query 或 QueryDocs
Update
Update 或 UpdateDocs
Delete
Delete 或 DeleteDoc
File
...
What's an easy way to read random line from a file in Unix command line?
...from the Camel Book:
perl -e 'srand; rand($.) < 1 && ($line = $_) while <>; print $line;' file
This has a significant advantage in space over reading the whole file in. You can find a proof of this method in The Art of Computer Programming, Volume 2, Section 3.4.2, by Donald E. K...
Get value from SimpleXMLElement Object
...
Just noticed if you json_encode the xml object and then json_decode it you get a nested stdObject to deal with, quite handy for when you're being lazy & working with simple structures :D
– Louis
Sep 20 '13 ...
What are the rules for calling the superclass constructor?
...:
class A : public B
{
public:
A(int a, int b, int c);
private:
int b_, c_;
};
Then, assuming B has a constructor which takes an int, A's constructor may look like this:
A::A(int a, int b, int c)
: B(a), b_(b), c_(c) // initialization list
{
// do something
}
As you can see, the con...
How to pass command line arguments to a rake task
... symbol arguments to the task call. For example:
require 'rake'
task :my_task, [:arg1, :arg2] do |t, args|
puts "Args were: #{args} of class #{args.class}"
puts "arg1 was: '#{args[:arg1]}' of class #{args[:arg1].class}"
puts "arg2 was: '#{args[:arg2]}' of class #{args[:arg2].class}"
end
ta...