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How to replace a hash key with another key
...n't like "smart" ruby code because it takes some time to tell what it is really doing. Your solution is in other hand simple and descriptive.
– Lucas
Nov 13 '14 at 18:55
3
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How to calculate a time difference in C++
...turns the CPU time consumed by the program. So if the program is run in parallel the time returned by the function would be the accumulated of the time spent on all CPUs, rather than the time elapsed cplusplus.com/reference/ctime/clock
– Ameer Jewdaki
Aug 3 '1...
How do you serialize a model instance in Django?
...
You can easily use a list to wrap the required object and that's all what django serializers need to correctly serialize it, eg.:
from django.core import serializers
# assuming obj is a model instance
serialized_obj = serializers.serialize('json', [ obj, ])
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Use LINQ to get items in one List, that are not in another List
...than the Where(...Any) variant since it can put the second list into a hashtable. Where(...Any) has a runtime of O(peopleList1.Count * peopleList2.Count) whereas variants based on HashSet<T> (almost) have a runtime of O(peopleList1.Count + peopleList2.Count).
Except implicitly removes duplica...
WebAPI Multiple Put/Post parameters
...tomer = {
"Name": "jhon",
"Id": 1,
};
var product = {
"Name": "table",
"CategoryId": 5,
"Count": 100
};
var employee = {
"Name": "Fatih",
"Id": 4,
};
var myData = {};
myData.customerData = customer;
myData.productData = product;
myData.employeeData = employee;
$.ajax({
...
How do I view the SQL generated by the Entity Framework?
... redirecting to Immediate (Tools > Options > Debugging > Redirect all Output Window text to Immediate Window)
– rkawano
May 21 '14 at 17:41
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Two divs side by side - Fluid display
...oats after the columns */
.container:after {
content: "";
display: table;
clear: both;
}
Here's the HTML:
<div class="container">
<div class="column"></div>
<div class="column"></div>
</div>
...
Find MongoDB records where array field is not empty
All of my records have a field called "pictures". This field is an array of strings.
11 Answers
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Restore a postgres backup file using the command line?
...ior to being restored. The
archive file formats are designed to
be portable across architectures.
So depends on the way it was dumped out. You can probably figure it out using the excellent file(1) command - if it mentions ASCII text and/or SQL, it should be restored with psql otherwise you...
Haskell error parse error on input `='
...You don't explain polynomial products to a kid learning the multiplication table -- it doesn't show how much you know, it shows you don't know how to share what you do know.
– btk
Jan 27 '13 at 19:09
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