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Creating PHP class instance with a string
...able functions & methods.
$func = 'my_function';
$func('param1'); // calls my_function('param1');
$method = 'doStuff';
$object = new MyClass();
$object->$method(); // calls the MyClass->doStuff() method.
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Javascript: formatting a rounded number to N decimals
...Number.toFixed(2); //returns "2.00"
myNumber.toFixed(1); //returns "2.0"
etc...
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How can I get a favicon to show up in my django app?
... still want a browsable API without seeing 404 errors in your logs (chrome etc will try to request favicon.ico automatically). There is no harm to use such a RedirectView in production.
– wim
Aug 9 '18 at 14:04
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Browser detection in JavaScript? [duplicate]
...userAgent and quite well tested for all browsers including iphone, android etc.
https://github.com/ded/bowser
You can use simply say:
if (bowser.msie && bowser.version <= 6) {
alert('Hello IE');
} else if (bowser.firefox){
alert('Hello Foxy');
} else if (bowser.chrome){
alert('H...
.htaccess rewrite to redirect root URL to subdirectory
...infinite redirect, since /subfolder is redirected to /subfolder/subfolder, etc... the RewriteCond %{REQUEST_URI} !^/subfolder makes sure that if a URL is already redirected, it's not done again
– patrick
Aug 23 '18 at 19:04
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boolean in an if statement
...on-zero number, any non-empty string value, any object or array reference, etc...
On the other hand:
if (booleanValue === true)
This will only satisfy the if condition if booleanValue is exactly equal to true. No other truthy value will satisfy it.
On the other hand if you do this:
if (someV...
decimal vs double! - Which one should I use and when? [duplicate]
... errors will quickly accumulate large enough to creep into the 15, 14, 13, etc. digits. Rounding to "cents" requires at least one digit of full accuracy after cents digit, but really you should reserve 4 or 5 to insulate from cumulative arithmetic errors, which you CANNOT allow to corrupt the hundr...
Null or default comparison of generic argument in C#
...ll match:
null for classes
null (empty) for Nullable<T>
zero/false/etc for other structs
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Strip HTML from Text JavaScript
...rivial, and 2) will reliably process tags, whitespace, entities, comments, etc. in the same way as the browser you're running in. That's frequently useful for web client code, but not necessarily appropriate for interacting with other systems where the rules are different.
– Sh...
When to use IList and when to use List
...when you need access by index to your collection, add and delete elements, etc...
List
List implements IList.
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