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Getting a slice of keys from a map
...ppend(keys, k)
}
}
To be efficient in Go, it's important to minimize memory allocations.
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Adding external library into Qt Creator project
...Qt. The idea is that you have to separate the directory from the library name (without the extension and without any 'lib' prefix). Of course, if you are including a Windows specific lib, this really doesn't matter.
In case you want to store your lib files in the project directory, you can referenc...
How to update only one field using Entity Framework?
...) { Id = userId, Password = password };
using (var db = new MyEfContextName())
{
db.Users.Attach(user);
db.Entry(user).Property(x => x.Password).IsModified = true;
db.SaveChanges();
}
}
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How to search for a part of a word with ElasticSearch
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n-grams can waste memory if you're not careful; the min_gram and max_gram analyzer settings should be enough to narrow searches down to one record, and no more (a max_gram of 15 over a name is probably wasteful, since very few names share a su...
Using String Format to show decimal up to 2 places or simple integer
I have got a price field to display which sometimes can be either 100 or 100.99 or 100.9, What I want is to display the price in 2 decimal places only if the decimals are entered for that price , for instance if its 100 so it should only show 100 not 100.00 and if the price is 100.2 it should displa...
Detect Safari browser
...cript? I have tried code below and it detects not only Safari but also Chrome browser.
18 Answers
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How to convert enum value to int?
...nction which return a type int. However, I only have a value of the TAX enumeration.
7 Answers
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How to semantically add heading to a list
This has been bothering me for a while, and I'm wondering if there's any consensus on how to do this properly. When I'm using an HTML list, how do I semantically include a header for the list?
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Faster way to develop and test print stylesheets (avoid print preview every time)?
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You can use the Chrome Media Type Emulation as accepted in the post See print css in the browser.
UPDATE 21/11/2017
The updated DevTools doc can be found here: View a page in print mode.
To view a page in print mode:
1. Open the Command...
Create an empty data.frame
I'm trying to initialize a data.frame without any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result.
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