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Count number of matches of a regex in Javascript
...ric way to count the number of occurrences of a regex pattern in a string, and don't want it to fail if there are zero occurrences, this code is what you need. Here's a demonstration:
/*
* Example
*/
const count = (str) => {
const re = /[a-z]{3}/g
return ((str || '').match(re) ...
Using helpers in model: how do I include helper dependencies?
I'm writing a model that handles user input from a text area. Following the advice from http://blog.caboo.se/articles/2008/8/25/sanitize-your-users-html-input , I'm cleaning up the input in the model before saving to database, using the before_validate callback.
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Rails render partial with block
...
You can use the capture helper, and even inline in the render call :
<%= render 'my_partial',
:locals => { :title => "Some Title" },
:captured => capture { %>
<p>Here is some content to be rendered inside the ...
“Uncaught TypeError: Illegal invocation” in Chrome
...
Another option is to use Function.prototype.bind() which is part of ES5 standard and available in all modern browsers.
var _raf = window.requestAnimationFrame ||
window.mozRequestAnimationFrame ||
window.webkitRequestAnimationFrame ||
window.msRequestAnimationFrame ||
...
What is the difference between __dirname and ./ in node.js?
When programming in Node.js and referencing files that are located somewhere in relation to your current directory, is there any reason to use the __dirname variable instead of just a regular ./ ? I've been using ./ thus far in my code and just discovered the existence of __dirname , and essenti...
How does mockito when() invocation work?
...e empty value; mockito uses indirection via proxying, method interception, and a shared instance of the MockingProgress class in order to determine whether an invocation of a method on a mock is for stubbing or replay of an existing stubbed behavior rather than passing information about stubbing vi...
How to set working/current directory in Vim?
So when I want to create a new file by using the :e command I don't want to specify the whole path, just the new filename. Can it be done?
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When I catch an exception, how do I get the type, file, and line number?
..._info() into local variables, since if you get an exception in the except handler, the local vars could get kept in a circular reference and not GC'd. Best practice is to always just use slices off of sys.exc_info() instead. Or use other modules like traceback, as other posters have suggested.
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omp parallel vs. omp parallel for
...r
specifying a parallel construct containing one worksharing construct
and no other statements. Permitted clauses are the union of the clauses
allowed for the parallel and worksharing contructs.
Taken from http://www.openmp.org/mp-documents/OpenMP3.0-SummarySpec.pdf
The specs for OpenMP are...
Parse usable Street Address, City, State, Zip from a string [closed]
...s in a normalized table. I need to do this for approximately 4,000 records and it needs to be repeatable.
24 Answers
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