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What is the difference between JSON and Object Literal Notation?
...ny syntax for functions).
But most importantly, to repeat my explanation from the beginning: You are in a JavaScript context. You define a JavaScript object. If any, a "JSON object" can only be contained in a string:
var obj = {foo: 42}; // creates a JavaScript object (this is *not* JSON)
var j...
Best design for a changelog / auditing database table? [closed]
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In the project I'm working on, audit log also started from the very minimalistic design, like the one you described:
event ID
event date/time
event type
user ID
description
The idea was the same: to keep things simple.
However, it quickly became obvious that this minimalist...
Should functions return null or an empty object?
What is the best practice when returning data from functions. Is it better to return a Null or an empty object? And why should one do one over the other?
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Bootstrap Modal immediately disappearing
.... Depending on the platform you are using, the modal code could be loaded from a number a sources. Some of the common ones are:
bootstrap.js (the full BootStrap JS suite)
bootstrap.min.js (same as above, just minified)
bootstrap-modal.js (the standalone plugin)
a dependency loader, e.g., require...
Best way to remove from NSMutableArray while iterating?
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This is awesome. I was trying to remove multiple items from the array and this worked perfectly. Other methods were causing problems :) Thanks man
– AbhinavVinay
Mar 12 '13 at 7:15
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What part of Hindley-Milner do you not understand?
...ype τ, proves that e has type τ'.
As requested: operator precedence, from highest to lowest:
Language-specific infix and mixfix operators, such as λ x . e, ∀ α . σ, and τ → τ', let x = e0 in e1, and whitespace for function application.
:
∈ and ∉
, (left-associative)
⊢
whitespa...
Git: cannot checkout branch - error: pathspec '…' did not match any file(s) known to git
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Try git fetch so that your local repository gets all the new info from github. It just takes the information about new branches and no actual code. After that the git checkout should work fine.
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When is it practical to use Depth-First Search (DFS) vs Breadth-First Search (BFS)? [closed]
... of solutions (aka searched-for items).
If you know a solution is not far from the root of the tree, a
breadth first search (BFS) might be better.
If the tree is very deep and solutions are rare, depth first search
(DFS) might take an extremely long time, but BFS could be faster.
If the tree is v...
Abandoning changes without deleting from history
...commit that just didn't work, so I want to abandon it without deleting it from history .
9 Answers
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What is an intuitive explanation of the Expectation Maximization technique? [closed]
...behind this answer can be found here.
Suppose we have some data sampled from two different groups, red and blue:
Here, we can see which data point belongs to the red or blue group. This makes it easy to find the parameters that characterise each group. For example, the mean of the red group is...