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Hashing a file in Python
... have to read bad style... which might be you reading this code years from now.
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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...y.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_table_name
end
end
(You still have to go t...
Parse JSON in TSQL
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Update: As of SQL Server 2016 parsing JSON in TSQL is now possible.
Natively, there is no support. You'll have to use CLR. It is as simple as that, unless you have a huge masochistic streak and want to write a JSON parser in SQL
Normally, folk ask for JSON output from the DB ...
Message Queue vs Message Bus — what are the differences?
And are there any? To me, MB knows both subscribers and publishers and acts as a mediator, notifying subscribers on new messages (effectively a "push" model). MQ, on the other hand, is more of a "pull" model, where consumers pull messages off a queue.
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Difference between author and committer in Git?
...author the "person who wrote the code" doesn't make sense. How would git know who wrote it? When you set git config user and then git add and git commit, then git would know who added and who committed, but it still would not know who wrote it.
– cowlinator
F...
Split delimited strings in a column and insert as new rows [duplicate]
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Now you can use tidyr 0.5.0's separate_rows is in place of strsplit + unnest.
For example:
library(tidyr)
(df <- read.table(textConnection("1|a,b,c\n2|a,c\n3|b,d\n4|e,f"), header = F, sep = "|", stringsAsFactors = F))
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What is the difference between char array and char pointer in C?
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Is something changed from 2012 to now. For a character array "s" prints entire array.. i.e., "hello"
– Bhanu Tez
May 9 '19 at 6:48
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What is BSON and exactly how is it different from JSON?
...and binary that aren't supported in JSON.
In practice, you don't have to know much about BSON when working with MongoDB, you just need to use the native types of your language and the supplied types (e.g. ObjectId) of its driver when constructing documents and they will be mapped into the appropria...
How to filter object array based on attributes?
... you can iterate over an object with jQuery, I just cant think of it right now):
function filter(collection, predicate)
{
var result = new Array();
var length = collection.length;
for(var j = 0; j < length; j++)
{
if(predicate(collection[j]) == true)
{
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AngularJS - Multiple ng-view in single template
... @trainoasis Used it for multiple projects, Seems 'very' stable and up to now i had no issue about changing API, in fact i don't remember any major change in API.
– Morteza Ziyae
Nov 21 '15 at 6:23
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