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Pure JavaScript Send POST Data Without a Form
...get request:
var xhr = new XMLHttpRequest();
// we defined the xhr
xhr.onreadystatechange = function () {
if (this.readyState != 4) return;
if (this.status == 200) {
var data = JSON.parse(this.responseText);
// we get the returned data
}
// end of state change: i...
Generate Java classes from .XSD files…?
...tes that I want price and name to be element within Item.
My Item.java is ready. I can then go ahead and create JAXB script for marshaling Item.
//creating Item data object
Item item = new Item();
item.setId(2);
item.setName("Foo");
item.setPrice(200);
.....
JAXBContext context = JAXBContext.newIn...
How can I do division with variables in a Linux shell?
...
You can find out a lot by reading through the man-page for bash. Type man bash at the prompt (q to exit)
– paddy
Aug 7 '13 at 3:07
...
How do I uniquely identify computers visiting my web site?
...correct. This does not give you the answer on a plate. It requires further reading, understanding of all the issues involved and why a simple code snippet is unlikely to ever completely work. An enterprising developer might write a library which does all the hard work, and enable people searching fo...
How to create a temporary directory/folder in Java?
...e of a file not being deleted immediately is on Windows when the file is already open (it could be open by a virus scanner for example). Do you have other documentation to show otherwise (I am curious about things like that :-)? If it happens regularly then the above code won't work, if it is rare ...
Is there a way to automatically build the package.json file for Node.js projects
...m init to generate package.json files for you!
It comes bundled with npm. Read its documentation here: https://docs.npmjs.com/cli/init
Also, there's an official tool you can use to generate this file programmatically: https://github.com/npm/init-package-json
...
How to map and remove nil values in Ruby
...ap { |x| process_x url }
"Ruby 2.7 adds Enumerable#filter_map" is a good read on the subject, with some performance benchmarks against some of the earlier approaches to this problem:
N = 1_00_000
enum = 1.upto(1_000)
Benchmark.bmbm do |x|
x.report("select + map") { N.times { enum.select { |i| ...
How can I calculate an md5 checksum of a directory?
... ls -alR dir | md5sum . This is even better no compression just a read. It is unique because the content contains the mod time and size of file ;)
– Sid
Oct 3 '12 at 1:14
...
Java Enum Methods - return opposite direction enum
...
For a small enum like this, I find the most readable solution to be:
public enum Direction {
NORTH {
@Override
public Direction getOppositeDirection() {
return SOUTH;
}
},
SOUTH {
@Override
public Direc...
Get user info via Google API
...rvice.Scope.PlusLogin,"https://www.googleapis.com/auth/plus.profile.emails.read" }
});
TokenResponse _token = flow.ExchangeCodeForTokenAsync("", code, "postmessage",
CancellationToken.None).Result;
// Cre...