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Difference between toFixed() and toPrecision()?
I'm new to JavaScript and just discovered toFixed() and toPrecision() to round numbers. However, I can't figure out what the difference between the two is.
...
How do I fix “for loop initial declaration used outside C99 mode” GCC error?
... follow the next steps:
Click Project/Build options, then in tab Compiler Settings choose subtab Other options, and place -std=c99 in the text area, and click Ok.
This will turn C99 mode on for your Compiler.
I hope this will help someone!
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#include in .h or .c / .cpp?
...iles being included multiple times, but if they have proper include guards set up to protect against multiple declaration/definition errors, then a few extra seconds of build time isn't worth worrying about. Trying to manage dependencies manually is a pain in the ass.
Of course, you shouldn't be...
Pushing empty commits to remote
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
Rails: Using build with a has_one association in rails
...ng you that you do not have required column user_id in the profile table.
Setting the relationships in the model is only part of the answer.
You also need to create a migration that adds the user_id column to the profile table.
Rails expects this to be there and if it is not you cannot access the...
Why do people hate SQL cursors so much? [closed]
...ation is the obvious internal cursor implementation.
Using higher-level "set-based operators" bundles the cursor results into a single result set, meaning less API back-and-forth.
Cursors predate modern languages that provide first-class collections. Old C, COBOL, Fortran, etc., had to process r...
Reference list item by index within Django template?
...n definitely add another filter to return the objects inside a django Queryset.
@register.filter
def get_item(Queryset):
return Queryset.your_item_key
In that case, you would type something like this {{ Queryset|index:x|get_item }} into your template to access some dictionary object. It work...
Entity Framework DateTime and UTC
... if (dt == null)
continue;
property.SetValue(entity, DateTime.SpecifyKind(dt.Value, attr.Kind));
}
}
}
Now hook that attribute up to your EF context:
public class MyContext : DbContext
{
public DbSet<Foo> Foos { get; set; }
public ...
Checking if an object is null in C#
I would like to prevent further processing on an object if it is null.
17 Answers
17
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