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Adrian Cochrane (alcinnz@floss.social)'s status on Friday, 13-Jan-2023 01:35:09 JST Adrian Cochrane

Two ways to filter arrays (with vanilla JavaScript) - Go Make Things: https://gomakethings.com/two-ways-to-filter-arrays-with-vanilla-javascript/
In conversation Friday, 13-Jan-2023 01:35:09 JST from floss.social permalink
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1. Two ways to filter arrays (with vanilla JavaScript)
  
  Yesterday, we looked at how to modify arrays with vanilla JS. Today, we’re going to look at how to filter them. Let’s dig in! What we’re trying to do Let’s say you have an array of objects. Each object in the array is a wizard, and some details about them. let wizards = [ { name: 'Merlin', spells: ['Dancing teacups', 'Turn into fish'], tool: 'wand' }, { name: 'Gandalf', spells: ['You shall not pass', 'Disappear'], tool: 'staff' }, { name: 'Radagast', spells: ['Talk to animals', 'Make plants grow'], tool: 'staff' } ]; You want to create an array that contains just the wizards that use a staff.
- Sebastian Lasse (sl007@digitalcourage.social)'s status on Friday, 13-Jan-2023 01:44:51 JST Sebastian Lasse
  in reply to
  
  @alcinnz
  General ack but we should be aware that a for … of loop is much faster than a .filter()
  Mostly things that do not return are faster.
  I guess it depends how much and where we filter.
  
  In conversation Friday, 13-Jan-2023 01:44:51 JST permalink

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