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Use dynamic variable names in JavaScript
...
a = 'varname';
str = a+' = '+'123';
eval(str)
alert(varname);
Try this...
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How does Google's Page Speed lossless image compression work?
... answered Dec 5 '12 at 6:19
user123444555621user123444555621
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How to get an enum value from a string value in Java?
...
123
Here's a nifty utility I use:
/**
* A common method for all enums since they can't have anot...
App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...之利器，欢迎体验！
来自中文网文档：https://www.fun123.cn/reference/iot/ble.html
可以获得到广播数据吗?可以获得到广播数据吗?可以接收广播数据：https://www.fun123.cn/reference/ ... l#AdvertisementData
感谢分享学习了，点赞感谢分享
What is the behavior difference between return-path, reply-to and from?
...mpany.com>
Subject: Super simple email
Reply-To: <coolstuff-threadId=123@mymailinglist.com>
This is a very simple body.
Now, let's say you are going to send it from a mailing list, that implements VERP (or some other bounce tracking mechanism that uses a different return-path). Lets sa...
Filter dataframe rows if value in column is in a set list of values [duplicate]
...e,
str.contains('pandas', case=False)
would match PANDAS, PanDAs, paNdAs123, and so on.
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MySQL Query GROUP BY day / month / year
...swered Jun 9 '13 at 9:17
mr.baby123mr.baby123
1,7841919 silver badges1212 bronze badges
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href=“tel:” and mobile numbers
...code for New South Wales
6555 - STD code for a specific telephone exchange
1234 - Telephone Exchange specific extension.
For a mobile phone this becomes
0 - trunk prefix
4 - Area code for a mobile telephone
1234 5678 - Mobile telephone number
Now, when I want to dial via the int...
How can I import a database with MySQL from terminal?
...ple:
mysql -u root -p wp_users < wp_users.sql
mysql -u root -pPassword123 wp_users < wp_users.sql
See also:
4.5.1.5. Executing SQL Statements from a Text File
Note: If you are on windows then you will have to cd (change directory) to your MySQL/bin directory inside the CMD before exec...
Difference between map and collect in Ruby?
...chmark code:
require 'benchmark'
h = { abc: 'hello', 'another_key' => 123, 4567 => 'third' }
a = 1..10
many = 500_000
Benchmark.bm do |b|
GC.start
b.report("hash keys collect") do
many.times do
h.keys.collect(&:to_s)
end
end
GC.start
b.report("hash keys map") ...