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Conditionally start at different places in storyboard from AppDelegate
...nd set its initial view controller as your window's root view controller before it sends application:didFinishLaunchingWithOptions: to your AppDelegate.
I also assume that the initial view controller in your storyboard is the navigation controller, onto which you want to push your main or login vie...
Can extension methods be applied to interfaces?
... interface extension methods.
Interfaces were actually one of the driving forces for the development of extension methods; since they can't implement any of their own functionality, extension methods are the easiest way of associating actual code with interface definitions.
See the Enumerable clas...
Convert String to equivalent Enum value
Is it possible for me to convert a String to an equivalent value in an Enumeration , using Java.
4 Answers
...
Class vs. static method in JavaScript
...s a prototype, it repeats, if no prototype exists, undefined is returned.
For example:
foo = {bar: 'baz'};
console.log(foo.bar); // logs "baz"
foo = {};
console.log(foo.bar); // logs undefined
function Foo(){}
Foo.prototype = {bar: 'baz'};
f = new Foo();
console.log(f.bar);
// logs "baz" because...
Received an invalid column length from the bcp client for colid 6
...the database.
Verify the data in excel. Also verify the data in the excel for its format to be in compliance with the database table schema.
To avoid this, try exceeding the data-length of the string datatype in the database table.
Hope this helps.
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SQL Server Escape an Underscore
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T-SQL Reference for LIKE:
You can use the wildcard pattern matching characters as literal characters. To use a wildcard character as a literal character, enclose the wildcard character in brackets. The following table shows several examp...
ALTER TABLE, set null in not null column, PostgreSQL 9.1
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Execute the command in this format
ALTER TABLE tablename ALTER COLUMN columnname SET NOT NULL;
for setting the column to not null.
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R data formats: RData, Rda, Rds etc
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Rda is just a short name for RData. You can just save(), load(), attach(), etc. just like you do with RData.
Rds stores a single R object. Yet, beyond that simple explanation, there are several differences from a "standard" storage. Probably this R-...
Script entire database SQL-Server
...pt to do this so the settings are always the same no matter who runs it? I foresee people on our dev team overwriting this file with different settings each time...
– Joe Phillips
Aug 4 '10 at 15:37
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Plotting two variables as lines using ggplot2 on the same graph
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For a small number of variables, you can build the plot manually yourself:
ggplot(test_data, aes(date)) +
geom_line(aes(y = var0, colour = "var0")) +
geom_line(aes(y = var1, colour = "var1"))
...