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How do I delete rows in a data frame?
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edited Mar 14 '19 at 18:43
Gregor Thomas
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What's the difference between eval, exec, and compile?
...ed as an expression, so it really does not return anything).
In versions 1.0 - 2.7, exec was a statement, because CPython needed to produce a different kind of code object for functions that used exec for its side effects inside the function.
In Python 3, exec is a function; its use has no effec...
How to remove element from array in forEach loop?
...tion(item, index, object) {
if (item === 'a') {
object.splice(index, 1);
}
});
log(review);
<pre id="out"></pre>
Which works fine for simple case where you do not have 2 of the same values as adjacent array items, other wise you have this problem.
var pre = document.g...
Activity transition in Android
How can I define the transition between two activities for Android 1.5 and later?
I would like an activity to fade in.
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What is the purpose and use of **kwargs?
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How do you allow spaces to be entered using scanf?
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Can someone explain the traverse function in Haskell?
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121
traverse is the same as fmap, except that it also allows you to run effects while you're rebui...
How do I query if a database schema exists
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165
Are you looking for sys.schemas?
IF NOT EXISTS (SELECT * FROM sys.schemas WHERE name = 'jim')...
Overloading Macro on Number of Arguments
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Simple as:
#define GET_MACRO(_1,_2,_3,NAME,...) NAME
#define FOO(...) GET_MACRO(__VA_ARGS__, FOO3, FOO2)(__VA_ARGS__)
So if you have these macros:
FOO(World, !) # expands to FOO2(World, !)
FOO(foo,bar,baz) # expands to FOO3(foo,bar,baz)
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java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
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17 Answers
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