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Encoding Javascript Object to Json string
... want to encode a Javascript object into a JSON string and I am having considerable difficulties.
2 Answers
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How to select the row with the maximum value in each group
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A dplyr solution:
library(dplyr)
ID <- c(1,1,1,2,2,2,2,3,3)
Value <- c(2,3,5,2,5,8,17,3,5)
Event <- c(1,1,2,1,2,1,2,2,2)
group <- data.frame(Subject=ID, pt=Value, Event=Event)
group %>%
group_by(Subject) %>%
summarize(max.pt = max(...
Custom method names in ASP.NET Web API
...T request to /api/users/authenticate you are basically calling the Get(int id) action and passing id=authenticate which obviously crashes because your Get action expects an integer.
If you want to have different action names than the standard ones you could modify your route definition in global.as...
How to randomly select rows in SQL?
...rver 2005. In my db, I have a table "customerNames" which has two columns "Id" and "Name" and approx. 1,000 results.
11 An...
How to change the DataTable Column Name?
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I just tried this solution now and it works fine - it did not do any changes or wipe out the underlying column data. Maybe something else is happening in your code...
– AshesToAshes
Aug 15 '13 at 15:25
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Dynamically adding a form to a Django formset with Ajax
...gt;
</div>
{% endfor %}
<input type="button" value="Add More" id="add_more">
<script>
$('#add_more').click(function() {
cloneMore('div.table:last', 'service');
});
</script>
In a javascript file:
function cloneMore(selector, type) {
var newElement =...
How many concurrent AJAX (XmlHttpRequest) requests are allowed in popular browsers?
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-1. OP said without having my users modify their browser settings. Also, it not practical since one would have to do this on each client.
– Razort4x
Apr 12 '13 at 6:30
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Use C++ with Cocoa Instead of Objective-C?
... MyClass {
MyCPPClass *cppInstance;
}
@end
@implementation MyClass
- (id)init {
if(self = [super init]) {
cppInstance = new MyCPPClass();
}
return self;
}
- (void) dealloc {
if(cppInstance != NULL) delete cppInstance;
[super dealloc];
}
- (void)callCpp {
cppInsta...
Efficiently updating database using SQLAlchemy ORM
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SQLAlchemy's ORM is meant to be used together with the SQL layer, not hide it. But you do have to keep one or two things in mind when using the ORM and plain SQL in the same transaction. Basically, from one side, ORM data modifications will only hit the database when you flush the changes from y...
CHECK constraint in MySQL is not working
... answered Jan 22 '10 at 7:11
David KerinsDavid Kerins
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