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How do I find the install time and date of Windows?
...
In regedit.exe go to:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\InstallDate
It's given as the number of seconds since January 1, 1970. (Note: for Windows 10, this date will be when the last feature update was installed, not the...
What's the point of 'const' in the Haskell Prelude?
... y
It's somewhat neater than using a lambda
x >> y = x >>= \_ -> y
and you can even use it point-free
(>>) = (. const) . (>>=)
although I don't particularly recommend that in this case.
sha...
Create folder with batch but only if it doesn't already exist
...efer this since it does not set %errorlevel% when dir already exists (Agent_9191's answer returns an error code of 1)
– csauve
Jun 18 '12 at 14:02
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what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?
...ing the json gem when parsing the json string you can pass in the symbolize_names option. See here: http://flori.github.com/json/doc/index.html (look under parse)
eg:
>> s ="{\"akey\":\"one\",\"bkey\":\"two\"}"
>> JSON.parse(s,:symbolize_names => true)
=> {:akey=>"one", :bkey=...
Build tree array from flat array in javascript
...ibrary. It's, as far as I can tell, the fastest solution.
function list_to_tree(list) {
var map = {}, node, roots = [], i;
for (i = 0; i < list.length; i += 1) {
map[list[i].id] = i; // initialize the map
list[i].children = []; // initialize the children
}
for (i = 0; i ...
jQuery/Javascript function to clear all the fields of a form [duplicate]
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@DayronGallardo Might also want to add $(container_element).find(':checkbox, :radio').prop('checked', false);
– rybo111
Mar 16 '14 at 9:55
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Passing variables in remote ssh command
...from my machine using ssh and pass through the environment variable $BUILD_NUMBER
7 Answers
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Getting value of public static final field/property of a class in Java via reflection
...ype and write an appropriate switch as below:
Field f = R.class.getField("_1st");
Class<?> t = f.getType();
if(t == int.class){
System.out.println(f.getInt(null));
}else if(t == double.class){
System.out.println(f.getDouble(null));
}...
...
Algorithm for creating a school timetable
...s heuristic. I named it "recursive swapping".
Input: a set of activities A_1...A_n and the constraints.
Output: a set of times TA_1...TA_n (the time slot of each activity. Rooms are excluded here, for simplicity). The algorithm must put each activity at a time slot, respecting constraints. Each TA...
postgresql list and order tables by size
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select table_name, pg_relation_size(quote_ident(table_name))
from information_schema.tables
where table_schema = 'public'
order by 2
This shows you the size of all tables in the schema public if you have multiple schemas, you might wan...