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How to have Emacs auto-refresh all buffers when files have changed on disk?
... I have set the variable in .emacs, but when i edit some code xcode, then read the file(already open) at that line, edit in xcode not there, need M-x revert-buffer handly.(mac + emacs 24.3.1)
– ericfang
May 7 '13 at 3:38
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What is the advantage to using bloom filters?
I am reading up on bloom filters and they just seem silly. Anything you can accomplish with a bloom filter, you could accomplish in less space, more efficiently, using a single hash function rather than multiple, or that's what it seems. Why would you use a bloom filter and how is it useful?
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Move an array element from one array position to another
...
this.splice(to, 0, this.splice(from, 1)[0]);
};
which is awesome to read, but if you want performance (in small data sets) try...
Array.prototype.move2 = function(pos1, pos2) {
// local variables
var i, tmp;
// cast input parameters to integers
pos1 = parseInt(pos1, 10);
...
What are '$$' used for in PL/pgSQL
...Insert text with single quotes in PostgreSQL
As to your second question:
Read the most excellent manual on CREATE FUNCTION to understand the last line of your example.
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Recommended way of making React component/div draggable
...reenshots, circumventing browser quirks.
If these sound familiar to you, read on.
Usage
Simple Drag Source
First, declare types of data that can be dragged.
These are used to check “compatibility” of drag sources and drop targets:
// ItemTypes.js
module.exports = {
BLOCK: 'block',
IMA...
How to construct a REST API that takes an array of id's for the resources
...fo, I prefer id=id1,id2,id3 because it makes the URI shorter and easier to read (by a human, during a debugging operation for example). Individual parameters for each value would make the URI especially harder to follow if there are other parameters between ids: api.com/users?id=id1&id=id2&j...
What should every JavaScript programmer know? [closed]
...hem; using them with inline anonymous function expressions to get compact, readable code.
The flow of control between the browser and user code; synchronous and asynchronous execution; events that fire inside the flow of control (eg. focus) vs. events and timeouts that occur when control returns; ho...
Unable to update the EntitySet - because it has a DefiningQuery and no element exis
...ption is to add a primary key to the table. Full stop. If you can do this, read no further.
But if you can't, or just hate yourself, there's a way to do it without the primary key.
In my case, I was working with a legacy system (originally flat files on a AS400 ported to Access and then ported to ...
Why should I avoid std::enable_if in function signatures
...template parameter approach has at least two advantages over the others:
readability: the enable_if use and the return/argument types are not merged together into one messy chunk of typename disambiguators and nested type accesses; even though the clutter of the disambiguator and nested type can b...
Gulp.js task, return on src?
...so it's async.
Without it the task system wouldn't know when it finished. Read the docs.
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