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CODE EXAMPLE FOR JAVASCRIPT

JavaScript remove duplicate items

function onlyUnique(value, index, self) {
  return self.indexOf(value) === index;
}

// usage example:
let a = ['a', 1, 'a', 2, '1'];
let unique = a.filter(onlyUnique);

console.log(unique); // ['a', 1, 2, '1']
Source by stackoverflow.com #
 
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Tagged: #JavaScript #remove #duplicate #items
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