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IRXmitter红外发射器扩展 · App Inventor 2 中文网
...或获取要使用的载波频率，单位为赫兹(Hz)。默认值为38,000（38 kHz）。只能设置CarrierFrequencies或CarrierFrequencyList显示的值。如果指定了不支持的值，会触发Screen.ErrorOccurred事件，错误代码17302。
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grep output to show only matching file
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answered Oct 11 '10 at 16:37
a'ra'r
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Byte[] to InputStream or OutputStream
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200
You create and use byte array I/O streams as follows:
byte[] source = ...;
ByteArrayInputStrea...
Smart way to truncate long strings
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380
Essentially, you check the length of the given string. If it's longer than a given length n, cli...
Groovy / grails how to determine a data type?
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edited Apr 22 '10 at 8:24
answered Jan 13 '10 at 21:34
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How to set the value to a cell in Google Sheets using Apps Script?
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220
The following code does what is required
function doTest() {
SpreadsheetApp.getActiveSheet()....
Making a mocked method return an argument that was passed to it
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What does the -ObjC linker flag do?
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answered Jul 8 '11 at 20:18
sergiosergio
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Checking if a variable is not nil and not zero in ruby
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unless discount.nil? || discount == 0
# ...
end
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How to grab substring before a specified character jQuery or JavaScript
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var streetaddress= addy.substr(0, addy.indexOf(','));
While it's not the best place for definitive information on what each method does (mozilla developer network is better for that) w3schools.com is good for introducing you to syntax.
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