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How do you check that a number is NaN in JavaScript?
...e idea of NaN gets confusing when var value = 0/0; and var value2= String("123 131"); create NaN values and something like this var value3 = "abcd"; is also a NaN value.
– Nick Pineda
Mar 11 '16 at 5:50
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Variable length (Dynamic) Arrays in Java
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123
Yes: use ArrayList.
In Java, "normal" arrays are fixed-size. You have to give them a size an...
In Python, how do I index a list with another list?
...
A functional approach:
a = [1,"A", 34, -123, "Hello", 12]
b = [0, 2, 5]
from operator import itemgetter
print(list(itemgetter(*b)(a)))
[1, 34, 12]
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impro...
Simple regular expression for a decimal with a precision of 2
...e
deci_num_checker = re.compile(r"""^[0-9]+(\.[0-9]{1,2})?$""")
valid = ["123.12", "2", "56754", "92929292929292.12", "0.21", "3.1"]
invalid = ["12.1232", "2.23332", "e666.76"]
assert len([deci_num_checker.match(x) != None for x in valid]) == len(valid)
assert [deci_num_checker.match(x) == None fo...
fatal: Not a valid object name: 'master'
...newly created (i.e. the primary branch would be something like feature/FOO-123). Those repos would literally not have a master branch at all.
– Thor84no
Aug 14 at 13:56
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How to check certificate name and alias in keystore files?
...ven command will yield all aliases containing the pattern 'foo', f.e. foo, 123_FOO, fooBar, etc. For more information man grep.
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How should I use try-with-resources with JDBC?
... = new PreparedStatementWrapper(con, query,
new Object[] { 123L, "TEST" }) {
@Override
protected void prepareStatement(Object... params) throws SQLException {
stat.setLong(1, Long.class.cast(params[0]));
stat.setString(2, String...
Replace comma with newline in sed on MacOS?
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123
sed 's/,/\
/g'
works on Mac OS X.
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实时开发、测试和调试工具 · App Inventor 2 中文网
... 隐私策略和使用条款 技术支持 service@fun123.cn
What do
...use it with a Foo containing something other than a String:
scala> Foo(123).getStringLength
<console>:9: error: could not find implicit value for parameter evidence: =:=[Int,String]
You can read that error as "could not find evidence that Int == String"... that's as it should be! getStri...