大约有 6,261 项符合查询结果（耗时：0.0152秒） [XML]
How bad is shadowing names defined in outer scopes?
...unctions, modules or classes. Another scenario is that you import function foo at the top of your module, and use it somewhere in your function body. Then you add a new argument to your function and named it - bad luck - foo.
Finally, built-in functions and types also live in the same namespace an...
Parse a URI String into Name-Value Collection
...ted. System.out.println(URLEncodedUtils.parse(new URI("http://example.com/?foo=bar&foo=baz"), "UTF-8")); will print [foo=bar, foo=baz].
– Akihiro HARAI
Jun 2 '14 at 6:24
...
How to get everything after last slash in a URL?
... This basic trick breaks completely on URLs such as http://www.example.com/foo/?entry=the/bar#another/bar. But basic parsing like rsplit is okay if you are absolutely certain there will never be any slashes in your query or fragment parameters. However, I shudder to think of how many codebases actua...
In a git merge conflict, what are the BACKUP, BASE, LOCAL, and REMOTE files that are generated?
...these files suitable for feeding into a typical 3-way merge tool. Thus:
foo.LOCAL: the "ours" side of the conflict - ie, your branch (HEAD) that will contain the results of the merge
foo.REMOTE: the "theirs" side of the conflict - the branch you are merging into HEAD
foo.BASE: the common ancestor...
Java Reflection: How to get the name of a variable?
...hich I wouldn't use - see below):
public void printFieldNames(Object obj, Foo... foos) {
List<Foo> fooList = Arrays.asList(foos);
for(Field field : obj.getClass().getFields()) {
if(fooList.contains(field.get()) {
System.out.println(field.getName());
}
...
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....
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...
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...
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...
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...