JavaScript dizisindeki yinelenen öğeyi kaldırma
Kod örnekleri
JS diziden kopyaları sil
const names = ['John', 'Paul', 'George', 'Ringo', 'John'];
let unique = [...new Set(names)];
console.log(unique); // 'John', 'Paul', 'George', 'Ringo'javascript diziden kopyaları Kaldır
unique = [...new Set(arr)]; // where arr contains duplicate elementsjavascript yinelenen dizeleri diziden Kaldır
//ES6
let uniqueArray = [...new Set(arrayWithDuplicates)];
//Alternative
function removeArrayDuplicates(arrayWithDuplicates) {
let seen = {};
let uniqueArray = [];
let len = arrayWithDuplicates.length;
let j = 0;
for(let i = 0; i < len; i++) {
let item = arrayWithDuplicates[i];
if(seen[item] !== 1) {
seen[item] = 1;
uniqueArray[j++] = item;
}
}
return uniqueArray;
}javascript'te bir dizideki kopyaları nasıl kaldırabilirim
const numbers = [1 , 21, 21, 34 ,12 ,34 ,12];
const removeRepeatNumbers = array => [... new Set(array)]
removeRepeatNumbers(numbers) // [ 1, 21, 34, 12 ]yinelenen değeri diziden Kaldır
let chars = ['A', 'B', 'A', 'C', 'B'];
let uniqueChars = [...new Set(chars)];
console.log(uniqueChars);
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