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How do I test if a string is empty in Objective-C?
How do I test if an NSString is empty in Objective-C?
30 Answers
30
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Error: The 'brew link' step did not complete successfully
...irst. Recommendations from nate worked for me.
– Brandon Clapp
Aug 12 '15 at 0:58
How do i reinstall npm? Or does it ...
How to loop through an array containing objects and access their properties
... objects contained in an array and change the properties of each one. If I do this:
15 Answers
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Addition for BigDecimal
I want to do some simple sums with some currency values expressed in BigDecimal type.
11 Answers
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How to set initial value and auto increment in MySQL?
How do I set the initial value for an "id" column in a MySQL table that start from 1001?
10 Answers
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Devise - How do I forbid certain users from signing in?
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Do it like this:
Create a column called is_active for the User model.
Then add the code below to the User model:
class User < ActiveRecord::Base
#this method is called by devise to check for "active" state of the mode...
Why does flowing off the end of a non-void function without returning a value not produce a compiler
Ever since I realized many years ago, that this doesn't produce an error by default (in GCC at least), I've always wondered why?
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How to call a JavaScript function from PHP?
...is nothing more complicated than a big string.
All the fancy work you can do with language like PHP - reading from databases and web services and all that - the ultimate end goal is the exact same basic principle: generate a string of HTML*.
Your big HTML string doesn't become anything more specia...
Multiple controllers with AngularJS in single page app
...ers available in your application module, as usual.
The most basic way to do it could be as simple as declaring the controller functions like this:
function widgetController($scope) {
// stuff here
}
function menuController($scope) {
// stuff here
}
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How do I copy a version of a single file from one git branch to another?
...r files and directories
overwrites the file myfile.txt and mydir
Wildcards don't work, but relative paths do
Multiple paths can be specified
an alternative:
git show commit_id:path/to/file > path/to/file
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