Shorter way and better: >>> a = [1, 2, 9, 5, 1] >>> b = [9, 8, 7, 6, 5] >>> len(set(a) & set(b)) # & is intersection – elements common to both 2 Why your code doesn’t work: >>> def filter_(x, y): … count = 0 … for num in y: … if num … Read more
You can use array_chunk() to split an array of data into smaller arrays, in this case of length 2, for each row. <table> <?php foreach (array_chunk($values, 2) as $row) { ?> <tr> <?php foreach ($row as $value) { ?> <td><?php echo htmlentities($value); ?></td> <?php } ?> </tr> <?php } ?> </table> Note that if you … Read more
How about incron? It triggering Commands On File/Directory Changes. sudo apt-get install incron Example: <path> <mask> <command> Where <path> can be a directory (meaning the directory and/or the files directly in that directory (not files in subdirectories of that directory!) are watched) or a file. <mask> can be one of the following: IN_ACCESS File was … Read more
Java works a little bit different than many other languages. What o is in the first example is simply a reference to the object. When you say o = new MyObject(), it creates a new Object of type MyObject and references o to that object, whereas before o referenced objects[index]. That is, objects[index] itself is … Read more
Try the following b.onclick= function(arg) { return function() { alert(arg); } }(a); The problem you were hitting is that javascript doesn’t use block scope. Instead all variables have a lifetime of their containing function. So there was only ever one a captured in all of the onclick functions and they all see it’s final value. … Read more
If you need to use several variables of different type in for-loop then you could use structures as follows: for( struct {int i; long i2;} x = {1, 1}; x.i2 < mid; x.i++, x.i2 = x.i * x.i ) { cout << x.i2 << endl; } so this is not a limitation, just use a … Read more
Answering to the main question, someone can access an array in a circular manner using modular arithmetic. That can be achieved in JavaScript with the modulus operator (%) and a workaround. Given an array arr of a length n and a value val stored in it that will be obtained through an access index i, … Read more
Thread.sleep(1000); // do nothing for 1000 miliseconds (1 second)
A summary answer of what I’ve learned from this question might be of help to others who wonder the same things as I did: The reason for the slowdown is that all integer variables in Python 3.x are now “infinite precision” as the type that used to be called “long” in Python 2.x but is … Read more
As already pointed out by all the answers goto – a reserved word in Java and is not used in the language. restart: is called an identifier followed by a colon. Here are a few things you need to take care of if you wish to achieve similar behavior – outer: // Should be placed … Read more