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What is a good use case for static import of methods?
... extends TestCase {
public void myMethodTest() {
assertEquals("foo", "bar");
}
}
In JUnit 4, test classes no longer need to extend TestCase and can instead use annotations. You can then statically import the assert methods from org.junit.Assert:
// new way
import static org.junit....
difference between each.with_index and each_with_index in Ruby?
... does the same thing, but has no optional starting index.
For example:
[:foo, :bar, :baz].each.with_index(2) do |value, index|
puts "#{index}: #{value}"
end
[:foo, :bar, :baz].each_with_index do |value, index|
puts "#{index}: #{value}"
end
Outputs:
2: foo
3: bar
4: baz
0: foo
1: bar
2...
Defining a HTML template to append using JQuery
...mplate" type="text/x-custom-template">
<tr>
<td>Foo</td>
<td>Bar</td>
<tr>
</script>
Using jQuery, adding rows based on the template would resemble:
var template = $('#hidden-template').html();
$('button.addRow').click(function...
What is a None value?
...n if it is only that one None object.
You can test for it explicitly:
if foo is None:
# foo is set to None
if bar is not None:
# bar is set to something *other* than None
Another use is to give optional parameters to functions an 'empty' default:
def spam(foo=None):
if foo is not N...
How do I declare a namespace in JavaScript?
...
I like this:
var yourNamespace = {
foo: function() {
},
bar: function() {
}
};
...
yourNamespace.foo();
share
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improve this answer
|...
How can jQuery deferred be used?
...apped Promise
return $.when(
cache[ val ] ||
$.ajax('/foo/', {
data: { value: val },
dataType: 'json',
success: function( resp ){
cache[ val ] = resp;
}
})
);
}
getData('foo').then(function(resp){
/...
Read text file into string array (and write)
...)
}
return w.Flush()
}
func main() {
lines, err := readLines("foo.in.txt")
if err != nil {
log.Fatalf("readLines: %s", err)
}
for i, line := range lines {
fmt.Println(i, line)
}
if err := writeLines(lines, "foo.out.txt"); err != nil {
log.Fat...
JavaScript equivalent to printf/String.Format
...
That slightly and subtly changes the outcome. Imagine 'foo {0}'.format(fnWithNoReturnValue()). It would currently return foo {0}. With your changes, it would return foo undefined.
– fearphage
Feb 16 '13 at 14:51
...
How Do I Document Packages in Java?
...java file and provide a standard javadoc style comment for a package:
com/foo/package-info.java:
/**
* com.foo is a group of bar utils for operating on foo things.
*/
package com.foo;
//rest of the file is empty
Language specification for packages
...
Why are C++ inline functions in the header?
...ultiple variations of. In order for the compiler to be able to e.g. make a Foo<int>::bar() function when you use the Foo template to create a Foo class, the actual definition of Foo<T>::bar() must be visible.
sha...