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Are strongly-typed functions as parameters possible in TypeScript?
...
console.log(result);
}
foo.save(stringCallback); //--will be showing error
foo.save(numberCallback);
Without function type by using plain property syntax it would be:
class Foo {
save(callback: (n: number) => void) : void {
callback(42);
}
}
var foo = new Foo();
...
App Inventor 2 百度网盘拓展：授权、文件列表、下载、上传 · App Inventor 2 中文网
...期、文件不存在等，message 是中文原因。
过期时 message 会提示「请重新授权」，此时清掉保存的 token 重新授权即可。
when BaiduPan1.ApiError(operation, httpStatus, message, responseBody) {
标签_状态.Text = message
if textContains(message, "重新授权"...
How do I add the contents of an iterable to a set?
...rt Timer
a = set(range(1, 100000))
b = list(range(50000, 150000))
def one_by_one(s, l):
for i in l:
s.add(i)
def cast_to_list_and_back(s, l):
s = set(list(s) + l)
def update_set(s,l):
s.update(l)
results are:
one_by_one 10.184448844986036
cast_to_list_and_back 7.96925...
Best way to generate random file names in Python
...y%m%d_%H%M%S")
filename = "_".join([basename, suffix]) # e.g. 'mylogfile_120508_171442'
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How can I check if an ip is in a network in Python?
...otted quad string to long integer"
return struct.unpack('L',socket.inet_aton(ip))[0]
def networkMask(ip,bits):
"Convert a network address to a long integer"
return dottedQuadToNum(ip) & makeMask(bits)
def addressInNetwork(ip,net):
"Is an address in a network"
return ip &...
What is %2C in a URL?
...# | 43 | C | 63 | c |
| 04 | EOT | 24 | $ | 44 | D | 64 | d |
| 05 | ENQ | 25 | % | 45 | E | 65 | e |
| 06 | ACK | 26 | & | 46 | F | 66 | f |
| 07 | BEL | 27 | ' | 47 | G | 67 | g |
| 08 | BS | 28 | ( | 48 | H | 68 | h |
| 09 | TAB | 29 | ) | 49 | I | 69 |...
MLKitCodeScanner 拓展：离线条码 / 二维码识别 · App Inventor 2 中文网
...性指定的组件里。
没设 预览容器 会触发 ScanFailed 并给出提示。
App 退到后台会自动释放摄像头，回到前台自动恢复扫描。
StopScan()
停止实时扫描并移除预览画面。
运行环境：AI 伴侣联机需要 Android 11 及以上
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SQL Server Installation - What is the Installation Media Folder?
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I ran into same error with 2019 RC1. This solution helped me. I found the required directory under 'C:\SQL2019RC1\RC1\Evaluation_ENU'. Once you set this as your medial library folder under the 'Options' page on the left hand side as the firs...
I want to delete all bin and obj folders to force all projects to rebuild everything
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thx for your answer. I get an error: %%G was unexpected at this time.
– MichaelD
Apr 16 '09 at 12:32
...
Horizontal ListView in Android?
...on code of android 4.2.2 ListView. I must say that it doesn't have all the errors which previous version had and works great!
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