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Regular Expression: Any character that is NOT a letter or number
I'm trying to figure out the regular expression that will match any character that is not a letter or a number. So characters such as (,,@,£,() etc ...
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How do I remove a property from a JavaScript object?
... delete operator is used to remove properties from objects.
const obj = { foo: "bar" }
delete obj.foo
obj.hasOwnProperty("foo") // false
Note that, for arrays, this is not the same as removing an element. To remove an element from an array, use Array#splice or Array#pop. For example:
arr // [0, ...
Mockito - difference between doReturn() and when()
...fBoundsException (the list is yet empty)
when(spy.get(0)).thenReturn("foo");
//You have to use doReturn() for stubbing:
doReturn("foo").when(spy).get(0);
2. Overriding a previous exception-stubbing:
when(mock.foo()).thenThrow(new RuntimeException());
//Impossible: the exce...
How to implement “select all” check box in HTML?
...">
function toggle(source) {
checkboxes = document.getElementsByName('foo');
for(var checkbox in checkboxes)
checkbox.checked = source.checked;
}
</script>
<input type="checkbox" onClick="toggle(this)" /> Toggle All<br/>
<input type="checkbox" name="foo" value="bar1...
Ruby class instance variable vs. class variable
...(or rather, a subclass of Class) corresponding to it. (When you say class Foo, you're really declaring a constant Foo and assigning a class object to it.) And every Ruby object can have instance variables, so class objects can have instance variables, too.
The trouble is, instance variables on cla...
How to use sed to remove the last n lines of a file
I want to remove some n lines from the end of a file. Can this be done using sed?
22 Answers
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Unix command-line JSON parser? [closed]
...vailable per default on most *nix operating systems per default.
$ echo '{"foo":1, "bar":2}' | python -m json.tool
{
"bar": 2,
"foo": 1
}
Note: Depending on your version of python, all keys might get sorted alphabetically, which can or can not be a good thing. With python 2 it was the defa...
How to get a password from a shell script without echoing
...pty because it was not echoed to the terminal.
[susam@cube ~]$ read a b c
foo \bar baz \qux
[susam@cube ~]$ echo a=$a b=$b c=$c
a=foo b=bar c=baz qux
[susam@cube ~]$ unset a b c
[susam@cube ~]$ read_secret a b c
[susam@cube ~]$ echo a=$a b=$b c=$c
a=foo b=bar c=baz qux
[susam@cube ~]$ unset a b c
...
Understanding Apache's access log
What do each of the things in this line from my access log mean?
3 Answers
3
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