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How to convert a Java 8 Stream to an Array?
... strings
Stream<String> myStreamOfStrings = List.of("lala", "foo", "bar").stream();
// Convert stream to array by using toArray method
String[] myArrayOfStrings = myStreamOfStrings.toArray(String[]::new);
// Print results
for (String string : myArrayOf...
Looping through a hash, or using an array in PowerShell
...
You can also do this without a variable
@{
'foo' = 222
'bar' = 333
'baz' = 444
'qux' = 555
} | % getEnumerator | % {
$_.key
$_.value
}
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Drop data frame columns by name
...
You could use %in% like this:
df[, !(colnames(df) %in% c("x","bar","foo"))]
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Checking if array is multidimensional or not?
...;
$b = array(1 => 'a',2 => 'b');
$c = array(1 => 'a',2 => 'b','foo' => array(1,array(2)));
function is_multi($a) {
$rv = array_filter($a,'is_array');
if(count($rv)>0) return true;
return false;
}
function is_multi2($a) {
foreach ($a as $v) {
if (is_array($...
django MultiValueDictKeyError error, how do I deal with it
...idn't you try to define is_private in your models as default=False?
class Foo(models.Models):
is_private = models.BooleanField(default=False)
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Convert a Map to a POJO
...", "23");
map.put("savings", "2500.39");
map.put("extra", "foo");
final DozerBeanMapper mapper = new DozerBeanMapper();
final MyPojo pojo = mapper.map(map, MyPojo.class);
System.out.println(pojo);
}
}
Output:
MyPojo[id = 5, name = Bob, age = 23, sav...
Broken references in Virtualenvs
...the env was with Python 2, run it with argument: virtualenv ~/.virtualenvs/foo -p python2, otherwise it will use Python 3.
– Bohumir Zamecnik
Apr 16 '19 at 12:35
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Create a unique number with javascript time
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This can generate 2 unique values: function foo1() {console.log(new Date().getUTCMilliseconds()); console.log(new Date().getUTCMilliseconds()); }
– Sharikov Vladislav
Dec 12 '15 at 10:24
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JavaScript style for optional callbacks
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typeof doesn't cause boxing. typeof "foo" is "string", not "object". It's actually the only real way you can tell whether you're dealing with a string primitive or String object. (Perhaps you're thinking of Object.prototype.toString, which is very handy, but doe...
can you host a private repository for your organization to use with npm?
...e name, based on organization name
Publish and control access to @org-name/foo
(disclaimer: not even remotely affiliated in any way with npm, Inc.)
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