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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...
...之利器，欢迎体验！
来自中文网文档：https://www.fun123.cn/reference/iot/ble.html
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'printf' vs. 'cout' in C++
... r3, #0
mov r0, r4
bl _ZSt16__ostream_insertIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_PKS3_l
mov r0, r4
mov r1, #2
bl _ZNSolsEi
ldr r1, .LCPI0_2
mov r2, #2
mov r3, #0
mov r4, r0
...
How to undo 'git reset'?
...reflog show master
c24138b master@{0}: merge origin/master: Fast-forward
90a2bf9 master@{1}: merge origin/master: Fast-forward
[...]
This should have less noise it in than the general HEAD reflog.
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Access mysql remote database from command line
...rant 'root'@'%' this is a huge security no no!
– josh123a123
Apr 27 '15 at 14:57
1
...
Laravel - Route::resource vs Route::controller
...t method used for RESTFull controller when we request something like 'user/123', getIndex() works for 'user/' but with user/123 I get error NotFoundHttpException (tried different names getView and others, works only when declare as Controller@getView)?
– Sonique
...
How is Pythons glob.glob ordered?
...d it:
My files were returned by glob something like:
myList = ["c:\tmp\x\123.csv", "c:\tmp\x\44.csv", "c:\tmp\x\101.csv", "c:\tmp\x\102.csv", "c:\tmp\x\12.csv"]
I sorted the list in place, to do this I created a function:
def sortKeyFunc(s):
return int(os.path.basename(s)[:-4])
This funct...
Finding what branch a Git commit came from
... /commit<SHA1>
/commit<SHA2>
Here git name-rev commit<SHA2> returns branchB.
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follow...
Eclipse copy/paste entire line keyboard shortcut
... Ctrl+Shift+V is now the shortcut that lets you paste in MyClass:123 and jump to line 123, and linkifies stack traces. Probably too useful to overwrite now.
– Noumenon
Feb 16 '18 at 0:49
...
How to use http.client in Node.js if there is basic authorization
...tion which gets encoded in Base64:
var username = 'Test';
var password = '123';
var auth = 'Basic ' + Buffer.from(username + ':' + password).toString('base64');
// new Buffer() is deprecated from v6
// auth is: 'Basic VGVzdDoxMjM='
var header = {'Host': 'www.example.com', 'Authorization': auth};
...
“Variable” variables in Javascript?
... try using eval():
var data = "testVariable";
eval("var temp_" + data + "=123;");
alert(temp_testVariable);
Or using the window object:
var data = "testVariable";
window["temp_" + data] = 123;
alert(window["temp_" + data]);
http://www.hiteshagrawal.com/javascript/dynamic-variables-in-javascrip...