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Why doesn't JavaScript have a last method? [closed]
...nother option, especially if you're already using UnderscoreJS, would be:
_.last([1, 2, 3, 4]); // Will return 4
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Centering a view in its superview using Visual Format Language
... views: ["view":self, "subview":_spinnerView])
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What's the role of adapters in Android?
...; adapter = new ArrayAdapter<String>(this,
android.R.layout.simple_list_item_1, android.R.id.text1, values);
First parameter: Context
Second parameter: Layout for the row
Third parameter: ID of the TextView to which the data is written
Fourth parameter: The array of data
...
How do I merge two javascript objects together in ES6+?
...:
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/assign
Syntax:
Object.assign(target, sources);
where ...sources represents the source object(s).
Example:
var obj1 = {name: 'Daisy', age: 30};
var obj2 = {name: 'Casey'};
Object.assign(obj1, obj2);
...
How to add an image to a JPanel?
...e image according to the size of the JLabel?
– coding_idiot
Dec 7 '11 at 14:26
1
Nice code! I'm n...
Is there a portable way to get the current username in Python?
... to combine os.getuid() with pwd.getpwuid():
import os
import pwd
def get_username():
return pwd.getpwuid( os.getuid() )[ 0 ]
Refer to the pwd docs for more details:
http://docs.python.org/library/pwd.html
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BLE（四）嗅探工具 - 创客硬件开发 - 清泛IT社区，为创新赋能！
文章源自：https://www.gandalf.site/2018/11/ble_26.html
商业级的Ellisys BEX400侦听工具最为符合对BLE流量捕获及分析的要求，然而售价过于昂贵；
其次，作为开源硬件且配有混杂模式追踪的“超牙”设备——Ubertooth One拥有二次开发和嗅...
How to get Erlang's release version number from a shell?
...
erl -eval 'erlang:display(erlang:system_info(otp_release)), halt().' -noshell
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How to insert a SQLite record with a datetime set to 'now' in Android application?
...QL so you can enter a raw SQL query.
mDb.execSQL("INSERT INTO "+DATABASE_TABLE+" VALUES (null, datetime()) ");
Or the java date time capabilities :
// set the format to sql date time
SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
Date date = new Date();
ContentValue...
MySQL: @variable vs. variable. What's the difference?
... a procedure variable is reinitialized to NULL each time the procedure is called, while the session-specific variable is not:
CREATE PROCEDURE prc_test ()
BEGIN
DECLARE var2 INT DEFAULT 1;
SET var2 = var2 + 1;
SET @var2 = @var2 + 1;
SELECT var2, @var2;
END;
SET @var2 = 1;
CALL prc...