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Linq to Entities - SQL “IN” clause
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356
You need to turn it on its head in terms of the way you're thinking about it. Instead of doin...
How to check for an undefined or null variable in JavaScript?
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346
You have to differentiate between cases:
Variables can be undefined or undeclared. You'll ge...
How do you convert a byte array to a hexadecimal string, and vice versa?
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edited Sep 27 '18 at 9:23
community wiki
12 r...
How to get number of rows using SqlDataReader in C#
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answered Sep 5 '09 at 13:25
Henk HoltermanHenk Holterman
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Apache Spark: The number of cores vs. the number of executors
...ry-mb and
yarn.nodemanager.resource.cpu-vcores, should probably be set to 63 *
1024 = 64512 (megabytes) and 15 respectively. We avoid allocating 100%
of the resources to YARN containers because the node needs some
resources to run the OS and Hadoop daemons. In this case, we leave a
gigabyte and a co...
How to convert latitude or longitude to meters?
...on1, lat2, lon2){ // generally used geo measurement function
var R = 6378.137; // Radius of earth in KM
var dLat = lat2 * Math.PI / 180 - lat1 * Math.PI / 180;
var dLon = lon2 * Math.PI / 180 - lon1 * Math.PI / 180;
var a = Math.sin(dLat/2) * Math.sin(dLat/2) +
Math.cos(lat1 * M...
How do I round a decimal value to 2 decimal places (for output on a page)
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930
decimalVar.ToString ("#.##"); // returns "" when decimalVar == 0
or
decimalVar.ToString ("0....
Why does pycharm propose to change method to static
The new pycharm release (3.1.3 community edition) proposes to convert the methods that don't work with the current object's state to static.
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How to easily map c++ enums to strings
...t; MyMap;
map_init(MyMap)
(eValue1, "A")
(eValue2, "B")
(eValue3, "C")
;
The function template <typename T> map_init(T&) returns a map_init_helper<T>.
map_init_helper<T> stores a T&, and defines the trivial map_init_helper& operator()(typename T::key_type...