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SQLite Concurrent Access
...n tell, there are no exceptions to that. The details are on SQLite's site: https://www.sqlite.org/lockingv3.html
This statement is of interest: "The pager module makes sure changes happen all at once, that either all changes occur or none of them do, that two or more processes do not try to access ...
Get Image size WITHOUT loading image into memory
... in order to identify a file type signature.
Relevant version of script:
https://raw.githubusercontent.com/scardine/image_size/master/get_image_size.py
[update]
Hmmm, unfortunately, when applied to jpegs, the above gives "'JPEG image data, EXIF standard 2.21'". No image size! – Alex Flint
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Hidden features of mod_rewrite
...ml$ http://google.com [R=302]
Forcing SSL
RewriteEngine on
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://example.com/$1 [R,L]
Common flags:
[R] or [redirect] - force a redirect (defaults to a 302 temporary redirect)
[R=301] or [redirect=301] - force a 301 permanent redirect
[L] or [last] ...
HTML5 Email Validation
...
The input type=email page of the www.w3.org site notes that an email address is any string which matches the following regular expression:
/^[a-zA-Z0-9.!#$%&’*+/=?^_`{|}~-]+@[a-zA-Z0-9-]+(?:\.[a-zA-Z0-9-]+)*$/
Use the required attribute and a patter...
What is the parameter “next” used for in Express?
...) {
// check for and maybe do something with req.user
});
Since /users/123 will match the route in your example first, that will first check and find user 123; then /users can do something with the result of that.
Route middleware is a more flexible and powerful tool, though, in my opinion, sin...
Container-fluid vs .container
... explain so lets look at the examples
Example one
container-fluid:
http://www.bootply.com/119981
So you see how the container takes up the whole screen...that's a container-fluid.
Now lets look at the other just a normal container and watch the edges of the preview
Example two
container
http://www....
In Typescript, How to check if a string is Numeric
...true;
isNaN(+'r') = true;
isNaN(+'') = false;
isNaN(null) = false;
https://codepen.io/CQCoder/pen/zYGEjxd?editors=1111
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What does %~dp0 mean, and how does it work?
...~dp1= D:\Workbench\
~dp2= D:\Workbench\
Run 2:
D:\Workbench>batch c:\123\a.exe e:\abc\b.exe
~dp0= D:\Workbench\
~dp1= c:\123\
~dp2= e:\abc\
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Load “Vanilla” Javascript Libraries into Node.js
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David WoleverDavid Wolever
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Angular.js directive dynamic templateURL
...;html ng-app="app">
<head>
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css">
</head>
<body>
<div class="container-fluid body-content" ng-controller="formView">
<div class="row">
...