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in javascript, how can i get the last character in a string [duplicate]
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var myString = "Test3";
alert(myString[myString.length-1])
here is a simple fiddle
http://jsfiddle.net/MZEqD/
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How to get the type of a variable in MATLAB?
...r one of its subclasses. You have to use strcmp with the class function to test if the object is specifically that type and not a subclass.
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Most used parts of Boost [closed]
...:
regex
filesystem
thread
lexical_cast
program_options (just brilliant!)
test (for all my unit testing needs).
String algorithms
String tokenizer
format (type-safe printf style string formatting)
smart ptrs
Boost was a massive help when I wrote my first cross-platform app - without it I really w...
Why should I use an IDE? [closed]
...hing to see the docs
Keeping a view of files, errors/warnings/console/unit tests etc and source code all on the screen at the same time in a useful way
Ease of running unit tests from the same window
Integrated debugging
Integrated source control
Navigating to where a compile-time error or run-time ...
Regular expression for matching HH:MM time format
...hing 12 hours (with am/pm) strings with the above regex, keep in mind that testing "13:00 PM" against the regex will return true (some values) because "3:00 PM" part in the string is valid. I resolved the issue by using the following if statement let res = value.match(regex); if (res && re...
How does having a dynamic variable affect performance?
...on time)
Using a dynamically-generated method that gets created before the test.
Using a dynamically-generated method that gets lazily instantiated during the test.
Each gets called 1 million times in a simple loop. Here are the timing results:
Direct: 3.4248ms
Dynamic: 45.0728ms
Reflection: 888.4...
How can I measure the speed of code written in PHP? [closed]
... and averaging the time and (b) using separate files for each thing you're testing. If you have several timings within one script, their order can make a difference sometimes.
– DisgruntledGoat
Jul 29 '09 at 16:48
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How can I check whether an array is null / empty?
...here's a key difference between a null array and an empty array. This is a test for null.
int arr[] = null;
if (arr == null) {
System.out.println("array is null");
}
"Empty" here has no official meaning. I'm choosing to define empty as having 0 elements:
arr = new int[0];
if (arr.length == 0) ...
Could not locate Gemfile
... tmp
bin config.ru doc files Gemfile.lock log public README.rdoc test vendor
bash-4.2$ cd plugins/
bash-4.2$ bundle install
Using rake (0.9.2.2)
Using i18n (0.6.0)
Using multi_json (1.3.6)
Using activesupport (3.2.11)
Using builder (3.0.0)
Using activemodel (3.2.11)
Using erubis (...
Can you get DB username, pw, database name in Rails?
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I think this is the simplest solution. After some testing (in Rails 5.2 at least) this will resolve DATABASE_URL correctly.
ActiveRecord::Base.configurations[Rails.env]
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