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Count number of matches of a regex in Javascript
...roblems. Start with an input string like this:
'12-2-2019 5:1:48.670'
and set up Paolo's function like this:
function count(re, str) {
if (typeof re !== "string") {
return 0;
}
re = (re === '.') ? ('\\' + re) : re;
var cre = new RegExp(re, 'g');
return ((str || '').matc...
How to change a nullable column to not nullable in a Rails migration?
I created a date column in a previous migration and set it to be nullable. Now I want to change it to be not nullable. How do I go about doing this assuming there are null rows in that database? I'm ok with setting those columns to Time.now if they're currently null.
...
NPM modules won't install globally without sudo
... using Chris Lea's PPA for install the following works for me:
npm config set prefix '~/.npm-packages'
and adding $HOME/.npm-packages/bin to $PATH
append to .bashrc
export PATH="$PATH:$HOME/.npm-packages/bin"
see https://stackoverflow.com/a/18277225 from @passy
...
Node.js: what is ENOSPC error and how to solve?
...). This comes out of kernel memory, which is unswappable. So, assuming you set the max at 524288, and all were used (improbable), you'd be using approx. 256MB/512MB of 32-bit/64-bit kernel memory.
– Murali Krishna
Apr 5 '17 at 11:19
...
NodeJS - Error installing with NPM
...io used by node-gyp via an environment variable so you can avoid having to set the --msvs_version=2012 property every time you do an npm install.
Examples:
set GYP_MSVS_VERSION=2012 for Visual Studio 2012
set GYP_MSVS_VERSION=2013e (the 'e' stands for FREE 'express edition')
For the full lis...
How to log request and response body with Retrofit-Android?
...elp in the Profiler (but it only offers meta-data about response). I tried setting the log level in the Builder, but this doesn't help me either :
...
Difference between Role and GrantedAuthority in Spring Security
...s layer.
On the other hand, ROLES are coarse grained representation of an set of permissions. A ROLE_READER would only have Read or View authority while a ROLE_EDITOR would have both Read and Write. Roles are mainly used for a first screening at the outskirt of the request processing such as
http.
...
How can I remove a key and its value from an associative array?
...
You can use unset:
unset($array['key-here']);
Example:
$array = array("key1" => "value1", "key2" => "value2");
print_r($array);
unset($array['key1']);
print_r($array);
unset($array['key2']);
print_r($array);
Output:
Array
(
...
jQuery - Create hidden form element on the fly
...ew .attr" as a lot of people seems to think. You should still use .attr to set attributes.
– David Hellsing
Mar 25 '13 at 13:33
...
Recommended way to embed PDF in HTML?
...splays the first 3 pages, whereas in IE9 its rendering text wrong - its offset some sections of the page. So technically speaking it is buggy. Additionally they expect you to subscribe to print or download documents! Essentially they are taking previously free documents and erecting a paywall around...