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How do I use Java to read from a file that is actively being written to?
...verflow.com/a/559146/1255493
public void run() {
try {
while (_running) {
Thread.sleep(_updateInterval);
long len = _file.length();
if (len < _filePointer) {
// Log must have been jibbled or deleted.
this.appendMessa...
Email address validation using ASP.NET MVC data type attributes
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Validating email addresses with regex is usually a terrible idea... but if you must, there's an excellent reference here.. regular-expressions.info/email.html
– Molomby
Jul 23 '14 at 4:18
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How can I return two values from a function in Python?
... two values, but you can return a tuple or a list and unpack it after the call:
def select_choice():
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return i, card # or [i, card]
my_i, my_card = select_choice()
On line return i, card i, card means creating a tuple. You can also use parenthesis like return (i, card), but tuples ar...
querySelector and querySelectorAll vs getElementsByClassName and getElementById in JavaScript
...w what exactly is the difference between querySelector and querySelectorAll against getElementsByClassName and getElementById ?
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Handling specific errors in JavaScript (think exceptions)
...they also explain how to make it conform, though it's not as succint. Basically same as above, but using instanceOf. Check here
– Bart
Oct 20 '15 at 8:58
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Convenient C++ struct initialisation
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Since style A is not allowed in C++ and you don't want style B then how about using style BX:
FooBar fb = { /*.foo=*/ 12, /*.bar=*/ 3.4 }; // :)
At least help at some extent.
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Ruby capitalize every word first letter
... @macsplean the &:method syntax in map is a concise way to call a method on each item in the array. You can then call join to turn that array into a string. The * ' ' is an alternative way to call join. You can think of it as multiplying the items in the array together to create a str...
Convert stdClass object to array in PHP
...ncode($object), true);
Or if you prefer, you can traverse the object manually, too:
foreach ($object as $value)
$array[] = $value->post_id;
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Applying a function to every row of a table using dplyr?
...it reflects the fact that when you're doing row wise operations you're actually working with tuples from a list of vectors (the columns in a dataframe).
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What's the difference between Spring Data's MongoTemplate and MongoRepository?
...goRepository but struggled with complex queries to find examples or to actually understand the Syntax.
3 Answers
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