Posted in javascript
7045
11:22 pm, November 1, 2021
 

javascript random string to put on url for cache

I was having a bit of a cache issue with a external css file, so i thought i might fix this by appending a random query string to the file name. This should force the browser to recheck the file each load time rather than caching it as it will think its a new file name. 

There are a few options in javascript that can achieve this. 

Note: This one is not solved yet, got distracted... ;)

Scripts

<!-- <link rel="stylesheet" href="theme.css" /> -->

Javascript

/* you could append a new date string to json */
var random_string = (new Date).toJSON();
console.log(random_string);

/* you could then md5 that if you want something more cryptic */
/* var random_string_2 = crypto.createHash('md5').update((new Date).toJSON());
console.log(random_string_2); */
/* actually that one does not work, (not sure what the crypto js library is... )*/

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unset

The unset CSS keyword resets a property to its inherited value if the property naturally inherits from its parent, and to its initial value if not. In other words, it behaves like the inherit keyword in the first case, when the property is an inherited property, and like the initial keyword in the second case, when the property is a non-inherited property.
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