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Using Sinatra for larger projects via multiple files
... true
end
configure :development do
# ...
end
helpers do
include Rack::Utils
alias_method :h, :escape_html
end
end
require_relative 'models/init'
require_relative 'helpers/init'
require_relative 'routes/init'
helpers/init.rb
# encoding: utf-8
require_relative 'partials...
How to resize an image to fit in the browser window?
... is a simple CSS only solution (JSFiddle), works everywhere, mobile and IE included:
CSS 2.0:
html, body {
height: 100%;
margin: 0;
padding: 0;
}
img {
padding: 0;
display: block;
margin: 0 auto;
max-height: 100%;
max-width: 100%;
}
HTML:
<body>
<img ...
java.lang.IllegalStateException: The specified child already has a parent
...
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JavaScript + Unicode regexes
...uation for ES 6
The upcoming ECMAScript language specification, edition 6, includes Unicode-aware regular expressions. Support must be enabled with the u modifier on the regex. See Unicode-aware regular expressions in ES6.
Until ES 6 is finished and widely adopted among browser vendors you're still ...
Formatting a number with exactly two decimals in JavaScript
...alization API Specification (ECMA402). It has pretty good browser support, including even IE11, and it is fully supported in Node.js.
const formatter = new Intl.NumberFormat('en-US', {
minimumFractionDigits: 2,
maximumFractionDigits: 2,
});
console.log(formatter.format(2.005)); // "...
Use find command but exclude files in two directories
...d. I use multiple instances of '-not -path' and in each path expression I include the full prefix as used in the first parameter to 'find' and end each with an asterisk (and escape any dots).
– jetset
Apr 15 '19 at 1:22
...
Locking pattern for proper use of .NET MemoryCache
...obvious ways of locking on insert will prevent all additions to the cache, including those that are unrelated.
This means that if we had 50 threads trying to set 50 different values, then we'll have to make all 50 threads wait on each other, even though they weren't even going to do the same calcul...
Sort Go map values by keys
... order is desired), keeping each use to just two lines of code.
Downsides include:
It's harder to read for people unaccustomed to using functions as first-class
It might be slower (I haven't done performance comparisons)
Other languages have various solutions:
If the use of <K> and <...