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ESP8285接入App Inventor 2深度调研：4种连接方案+是否需要开发拓展 - 创客...
...285是乐鑫(Espressif)推出的WiFi SoC，本质是ESP8266的"内置Flash版本"：
参数ESP8285ESP8266CPUTensilica L106, 80/160MHz相同WiFi802.11 b/g/n相同Flash内置 1MB外部 SPI FlashSRAM~50KB 用户可用相同GPIO最多 17 个相同接口UART, SPI, I2C, PWM, ADC相同封装QF...
What is the correct syntax for 'else if'?
... via a dictionary. Nothing to be scared of. If the method for handling <foo> is do_foo, you can even build the dict on the fly when the app starts up.
– John Machin
Mar 7 '10 at 6:52
...
jQuery removeClass wildcard
...d matching. Optionally add classes: https://gist.github.com/1517285
$( '#foo' ).alterClass( 'foo-* bar-*', 'foobar' )
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Groovy executing shell commands
...
I find this more idiomatic:
def proc = "ls foo.txt doesnotexist.txt".execute()
assert proc.in.text == "foo.txt\n"
assert proc.err.text == "ls: doesnotexist.txt: No such file or directory\n"
As another post mentions, these are blocking calls, but since we want to wor...
Get host domain from URL?
how to get host domain from a string URL?
9 Answers
9
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Creating an instance using the class name and calling constructor
... to use a dollar (as that's what the compiler uses). For example:
package foo;
public class Outer
{
public static class Nested {}
}
To obtain the Class object for that, you'd need Class.forName("foo.Outer$Nested").
s...
Copy to clipboard in Node.js?
... argument:
require('child_process').exec(
"CopyToClipboard.exe \"test foo bar\"",
function(err, stdout, stderr) {
console.log(stdout); // to confirm the application has been run
}
);
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
低功耗蓝牙(BLE)以低功耗、低成本、开发简便逐渐被广泛应用，本文主要介绍一款较为通用、价格低廉的BLE设备从零开始如何利用App Inventor 2开发一款自己专属的手机蓝牙App应用。BLE与经典蓝牙的区别可参考：《低功耗蓝牙(BLE) ...
Static Block in Java [duplicate]
... to write non-static initializers, which look even stranger:
public class Foo {
{
// This code will be executed before every constructor
// but after the call to super()
}
Foo() {
}
}
shar...
How do I merge two javascript objects together in ES6+?
.../en-US/docs/Web/JavaScript/Reference/… Running babel-node: const ob1 = {foo: 123}; const ob2 = {bar: 234}; const merged = {...ob1, ...ob2}; console.log(merged) Output: { foo: 123, bar: 234 }
– Thijs Koerselman
Sep 4 '15 at 18:52
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