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get name of a variable or parameter [duplicate]
...Alternatively,
1) Without touching System.Reflection namespace,
GETNAME(new { myInput });
public static string GETNAME<T>(T myInput) where T : class
{
if (myInput == null)
return string.Empty;
return myInput.ToString().TrimStart('{').TrimEnd('}').Split('=')[0].Trim();
}
...
Change Circle color of radio button
...:
if(Build.VERSION.SDK_INT>=21)
{
ColorStateList colorStateList = new ColorStateList(
new int[][]{
new int[]{-android.R.attr.state_enabled}, //disabled
new int[]{android.R.attr.state_enabled} //enabled
},
new int[]...
A good book for learning D3.js [closed]
...c.js charting library that combines d3.js and crossfilter, came out with a new Data Visualization with D3 Cookbook that looks promising and appears to assume a bit more of the reader than does Scott Murray's book.
There's also a d3.js intro for people who are still new to HTML and CSS:
Part1: htt...
How do PHP sessions work? (not “how are they used?”)
...that unique identification number to users' browser to save that number.
A new file is created on the server with the same name of unique identification number with sess_ prefix (ie sess_a86b10aeb5cd56434f8691799b1d9360.)
The browser sends that cookie to the server with each request.
If PHP gets tha...
How to flatten tree via LINQ?
...t;MyNode> e) =>
e.SelectMany(c => Flatten(c.Elements)).Concat(new[] { e });
You can then filter by group using Where(...).
To earn some "points for style", convert Flatten to an extension function in a static class.
public static IEnumerable<MyNode> Flatten(this IEnumerable<...
Pass entire form as data in jQuery Ajax function
...send it:
var myform = document.getElementById("myform");
var fd = new FormData(myform );
$.ajax({
url: "example.php",
data: fd,
cache: false,
processData: false,
contentType: false,
type: 'POST',
success: function (dataofconfirm) {...
Difference between console.log() and console.debug()?
...is selected.
– cilf
Oct 18 '17 at 0:51
...
Git add all files modified, deleted, and untracked?
...rsion 2.x.
You want git add -A:
git add -A stages All;
git add . stages new and modified, without deleted;
git add -u stages modified and deleted, without new.
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How to update a value, given a key in a hashmap?
...method and supply it a mapping function, which will be called to compute a new value based on existing one.
For example,
Map<String, Integer> words = new HashMap<>();
words.put("hello", 3);
words.put("world", 4);
words.computeIfPresent("hello", (k, v) -> v + 1);
System.out.println(w...
Checking if an object is null in C#
...taList.
You need to create one with
public List<Object> dataList = new List<Object>();
Even better: since it's a field, make it private. And if there's nothing preventing you, make it also readonly. Just good practice.
Aside
The correct way to check for nullity is if(data != null)....