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How to automatically generate a stacktrace when my program crashes
...signal handler on top of the stack, and the libc functions before main in addition to main, foo, bar, and baz.
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What is the string concatenation operator in Oracle?
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离线版启动超时，有报错日志 - App Inventor 2 离线版 - 清泛IT社区，为创新赋能！
...\appinventor\AppInventor2\resources\app.asar.unpacked\OpenJDK\bin\java, --add-opens=java.base/java.lang=ALL-UNNAMED, -Xmx4G, --add-opens, java.base/java.net=ALL-UNNAMED, --add-opens, java.base/sun.net.www.protocol.http=ALL-UNNAMED, --add-opens, java.base/sun.net.www.protocol.https=ALL-UNNAMED, -Dfil...
How to get complete month name from DateTime
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90
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How to map with index in Ruby?
...oo = ['d'] * 5; foo.map!.with_index { |x,i| x * i }; foo #=> ["", "d", "dd", "ddd", "dddd"]
– Connor McKay
Feb 27 '14 at 21:47
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Check if a String contains numbers Java
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27
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How to generate random SHA1 hash to use as ID in node.js?
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642
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How do you get the current time of day?
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47
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How to get 30 days prior to current date?
...ay be interested in this actively maintained fork instead):
Date.today().add(-30).days(); // or...
Date.today().add({days:-30});
[Edit]
See also the excellent Moment.js JavaScript date library:
moment().subtract(30, 'days'); // or...
moment().add(-30, 'days');
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