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Get the latest record from mongodb collection
...1 means order opposite of the one that records are inserted in.
Edit: For all the downvoters, above is a Mongoose syntax,
mongo CLI syntax is: db.collectionName.find({}).sort({$natural:-1}).limit(1)
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How can I add a PHP page to WordPress?
...og that will execute my PHP code in it, whilst remaining a part of the overall site CSS/theme/design.
17 Answers
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Exotic architectures the standards committees care about
...rfaced:
Unisys C Compiler Programming Reference Manual
Section 4.5 has a table of data types with 9, 18, 36, and 72 bits.
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How to access and test an internal (non-exports) function in a node.js module?
... This should absolutely be the top answer. It does not require rewriting all existing modules with NODE_ENV specific exports, nor does it involve reading in the module as text.
– Adam Yost
Jul 22 '15 at 16:00
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center aligning a fixed position div
...ake a new static div with margin-left: auto and margin-right: auto, or for table make it align="center".
Tadaaaah, you have centered your fixed div now
Hope this will help.
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What is the difference between and ?
...t; | %preformatted; | DL | DIV | NOSCRIPT |
BLOCKQUOTE | FORM | HR | TABLE | FIELDSET | ADDRESS">
<!ENTITY % flow "%block; | %inline;">
<!ELEMENT DIV - - (%flow;)* -- generic language/style container -->
<!ELEMENT P - O (%inline;)* -- paragraph -->
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Useful code which uses reduce()? [closed]
...found for it besides + and * were with and and or, but now we have any and all to replace those cases.
foldl and foldr do come up in Scheme a lot...
Here's some cute usages:
Flatten a list
Goal: turn [[1, 2, 3], [4, 5], [6, 7, 8]] into [1, 2, 3, 4, 5, 6, 7, 8].
reduce(list.__add__, [[1, 2, 3]...
Event system in Python
...r methods', which is a
simple implementation of the Observer pattern.
Basically, the handler methods (callables) are stored in an array and are each called when the event 'fires'.
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The disadvantage of Observer event systems is that you can only register the handlers on the actual Ev...
How to concatenate properties from multiple JavaScript objects
...n Javascript.
The Object.assign() method is used to copy the values of all enumerable own properties from one or more source objects to a target object. It will return the target object.
MDN documentation on Object.assign()
var o1 = { a: 1 };
var o2 = { b: 2 };
var o3 = { c: 3 };
var...
What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
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First of all, never use a for in loop to enumerate over an array. Never. Use good old for(var i = 0; i<arr.length; i++).
The reason behind this is the following: each object in JavaScript has a special field called prototype. Ever...