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Most efficient way to create a zero filled JavaScript array?
...sional arrays and it seemed to greatly speed up my test cases. Having just now done some more testing on FF41 and Chrome45.0.2454.99 m. Yes, I guess I really needed more space to explain myself. Most of my testing was bias I will admit. But, check this out. Predefine a var and using just this line (...
Upload files with HTTPWebrequest (multipart/form-data)
... url));
string boundary = "---------------------------" + DateTime.Now.Ticks.ToString("x");
byte[] boundarybytes = System.Text.Encoding.ASCII.GetBytes("\r\n--" + boundary + "\r\n");
HttpWebRequest wr = (HttpWebRequest)WebRequest.Create(url);
wr.ContentType = "multipa...
Get the _id of inserted document in Mongo database in NodeJS
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I don't know if this is general or only works in meteor, but when you call collection.insert(object), it returns the id of the inserted object right away.
– vantesllar
Oct 30 '16 at 20:45
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MySQL vs MongoDB 1000 reads
..., with many indexes needed to ensure relational integrity between tables.
Now consider the same design with a document store. If all of those related tables are subordinate to the main table (and they often are), then you might be able to model the data such that the entire entity is stored in a si...
ModelState.IsValid == false, why?
...eturn Values.All(modelState => modelState.Errors.Count == 0);
}
}
Now, it looks like it can't be. Well, that's for ASP.NET MVC v1.
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Drop all duplicate rows across multiple columns in Python Pandas
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This is much easier in pandas now with drop_duplicates and the keep parameter.
import pandas as pd
df = pd.DataFrame({"A":["foo", "foo", "foo", "bar"], "B":[0,1,1,1], "C":["A","A","B","A"]})
df.drop_duplicates(subset=['A', 'C'], keep=False)
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How to debug external class library projects in visual studio?
...ing
Copy B's dll with dll's .PDB to the ProjectA's compiling directory.
Now debug ProjectA. When code reaches the part where you need to call dll's method or events etc while debugging, press F11 to step into the dll's code.
NOTE : DO NOT MISS TO COPY THE .PDB FILE
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Payment Processors - What do I need to know if I want to accept credit cards on my website? [closed]
...h it again soon with my own business. If you have some network technical knowledge, it really isn't that bad. Otherwise you will be better off using Paypal or another type of service.
The process starts by getting a merchant account setup and tied to your bank account. You may want to check with...
How to convert an NSString into an NSNumber
...g. int , float , char , unsigned int , etc.)? The problem is, I don't know which number type the string will contain at runtime.
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Eclipse says: “Workspace in use or cannot be created, chose a different one.” How do I unlock a work
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Thanks Boris! Not the right place, but I have to rant now.. Why doesn't Eclipse give an option to delete the .lock file or even hint at its existence? What self-respecting IDE can't have multiple instances running in the same workspace anyway? If deleting the .lock file is the o...