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Efficient way to remove ALL whitespace from String?
... .ToArray());
}
I tested it in a simple unit test:
[Test]
[TestCase("123 123 1adc \n 222", "1231231adc222")]
public void RemoveWhiteSpace1(string input, string expected)
{
string s = null;
for (int i = 0; i < 1000000; i++)
{
s = input.RemoveWhitespace();
}
Assert...
Getting visitors country from their IP
...
Actually, you can call http://api.hostip.info/?ip=123.125.114.144 to get the information, which is presented in XML.
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App Inventor 2 怎么选择并打开一个文本文件？ - App Inventor 2 中文网 - ...
...径给文件管理器打开即可，具体请参阅文档：https://www.fun123.cn/reference/components/media.html#FilePicker
[/hide]
upupupupupupup{:8_389:}{:8_381:}{:8_381:}项目里面有个UrsAl2ByteArrayTest的，是把数据存入手机再导出来。这个就是保存参数和导...
BLE数据收发 20个字节的限制问题 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...将被触发。默认 MTU 为 20。
来源中文文档：https://www.fun123.cn/reference/iot/bluetoothle.html
App Inventor 2 发表于 2024-11-07 17:28
RequestMTU – 为 BluetoothLE 连接请求新的最大传输单元 (MTU)。此功能仅在两个设备都支持蓝牙 4.2 或更高 ....
Why can't variable names start with numbers?
... If it had to be numbers+alpha, then you could still do String 0x123 = "Hello World". Unless you state that variable names are "numbers+alpha that don't parse to a valid numeric designation", and that's just silly.
– eaolson
Oct 11 '09 at 3:56
...
Using reflect, how do you set the value of a struct field?
...oo struct {
Number int
Text string
}
func main() {
foo := Foo{123, "Hello"}
fmt.Println(int(reflect.ValueOf(foo).Field(0).Int()))
reflect.ValueOf(&foo).Elem().Field(0).SetInt(321)
fmt.Println(int(reflect.ValueOf(foo).Field(0).Int()))
}
Prints:
123
321
...
How to create hyperlink to call phone number on mobile devices?
...
I used:
Tel: <a href="tel:+123 123456789">+123 123456789</a>
and the result is:
Tel: +123 123456789
Where "Tel:" stands for pure text and only the number is coded and clickable.
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How to use the TextWatcher class in Android?
...ring input to password type or replace by another character like this 123xxxxxxxxx3455
10 Answers
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“please check gdb is codesigned - see taskgated(8)” - How to get gdb installed with homebrew code si
...answered Nov 18 '13 at 12:55
klm123klm123
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In Django, how do I check if a user is in a certain group?
...
123
You can access the groups simply through the groups attribute on User.
from django.contrib.au...