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What is the 'new' keyword in JavaScript?
...h value 'second'
// returns 'second'
It's like class inheritance because now, any objects you make using new ObjMaker() will also appear to have inherited the 'b' property.
If you want something like a subclass, then you do this:
SubObjMaker = function () {};
SubObjMaker.prototype = new ObjMaker...
How can I find the length of a number?
...ake its absolute value and adjust the sign afterwards.
Update for ES2015
Now that Math.log10 is a thing, you can simply write
const len = Math.ceil(Math.log10(num + 1));
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Is there a MySQL option/feature to track history of changes to records?
...ing relatively painless to implement - your existing code doesn't need to know about the triggers and audit stuff.
If the business requirement is "show me what the state of the data was on a given date in the past", it means that the aspect of change over time has entered your solution. Whilst you...
Using socket.io in Express 4 and express-generator's /bin/www
...ect. After Express Js 4 was lauched, i've updated my express-generator and now the app initial functions goes into ./bin/www file, including those vars (www file contents: http://jsfiddle.net/avMa5/ )
...
“Unknown provider: aProvider
...
I'd still love to know how I could have found the place in our source code that caused this issue, but I have since been able to find the problem manually.
There was a controller function declared on the global scope, instead of using a .contr...
Memoization in Haskell?
...u can check the work so far by verifying that toList nats gives you [0..]
Now,
f_tree :: Tree Int
f_tree = fmap (f fastest_f) nats
fastest_f :: Int -> Int
fastest_f = index f_tree
works just like with list above, but instead of taking linear time to find each node, can chase it down in loga...
Active Record - Find records which were created_at before today
...was referring something like MyTable1.where(MyTable[:created_at] < Time.now) is it possible?
– Sayuj
Nov 2 '11 at 10:05
...
How do you implement a Stack and a Queue in JavaScript?
...
var stack = [];
stack.push(2); // stack is now [2]
stack.push(5); // stack is now [2, 5]
var i = stack.pop(); // stack is now [2]
alert(i); // displays 5
var queue = [];
queue.push(2); // queue is now [2]
queue.push(5); // queue is no...
I lost my .keystore file?
...
Now it is possible don't worry, here is the full and final steps to reset .JKS file.
Step-1
Download the UPLOAD CERTIFICATE (file name - upload_cert.der) from your Google Play Store Console
Step-2
Go to this LINK http...
Sqlite: CURRENT_TIMESTAMP is in GMT, not the timezone of the machine
...:
CREATE TABLE whatever(
....
timestamp DATE DEFAULT (datetime('now','localtime')),
...
);
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