How to get distinct value from array in javascript?
How to get distinct value from array in javascript?
1 answer
by
filiberto ,
2 years ago
@elisha_langworth
There are multiple ways to get distinct values from an array in JavaScript. Here are a few examples:
- Using the Set object:
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const array = [1, 2, 2, 3, 3, 4, 5, 5]; const distinctArray = [...new Set(array)]; console.log(distinctArray); // Output: [1, 2, 3, 4, 5] |
- Using a filter and indexOf method:
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const array = [1, 2, 2, 3, 3, 4, 5, 5];
const distinctArray = array.filter((value, index, self) => {
return self.indexOf(value) === index;
});
console.log(distinctArray); // Output: [1, 2, 3, 4, 5]
|
- Using the reduce method:
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const array = [1, 2, 2, 3, 3, 4, 5, 5];
const distinctArray = array.reduce((unique, value) => {
if (!unique.includes(value)) {
unique.push(value);
}
return unique;
}, []);
console.log(distinctArray); // Output: [1, 2, 3, 4, 5]
|
All these methods will give you an array with distinct values from the original array.