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Check if a row exists, otherwise insert
... things can overbook a flight, as it will insert a new row when there are 10 tickets max and you are booking 20.
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static function in C
...t); /* prototype */
int f2(int); /* prototype */
int main(void) {
f1(10); /* ok, f1 is visible to the linker */
f2(12); /* nope, f2 is not visible to the linker */
return 0;
}
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Why do we need a pure virtual destructor in C++?
...unctions can have implementations).
struct foo {
virtual void bar() = 0;
};
void foo::bar() { /* default implementation */ }
class foof : public foo {
void bar() { foo::bar(); } // have to explicitly call default implementation.
};
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Google Maps v3 - limit viewable area and zoom level
...script>
</head>
<body>
<div id="map" style="width: 400px; height: 300px;"></div>
<script type="text/javascript">
// This is the minimum zoom level that we'll allow
var minZoomLevel = 5;
var map = new google.maps.Map(document.getElementById('map'...
What does auto&& tell us?
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240
By using auto&& var = <initializer> you are saying: I will accept any initializer ...
How do I remove newlines from a text file?
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edited Jun 28 '10 at 18:20
answered Jun 28 '10 at 17:51
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Android EditText Max Length [duplicate]
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107
Possible duplicate of Limit text length of EditText in Android
Use android:maxLength="140"
T...
JavaScript for…in vs for
...which idiom is best understood.
An array is iterated using:
for (var i = 0; i < a.length; i++)
//do stuff with a[i]
An object being used as an associative array is iterated using:
for (var key in o)
//do stuff with o[key]
Unless you have earth shattering reasons, stick to the establis...
Copying text with color from Notepad++
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190
There's a plugin called NppExport that does just that in a couple of available formats. If you d...
Chaining multiple MapReduce jobs in Hadoop
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answered Mar 24 '10 at 22:31
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