i have an array like this:
let data = ['week1_aopCrop', 'week1_actCrop', 'week2_aopCrop', 'week2_actCrop']
the output should be:
['week1', 'week2']
anyone can help? thanks!
>Solution :
1) You can easily achieve the result using reduce and Set as
let data = ["week1_aopCrop", "week1_actCrop", "week2_aopCrop", "week2_actCrop"];
const result = [...data.reduce((acc, curr) => {
acc.add(curr.split("_")[0]);
return acc;
}, new Set()),
];
console.log(result);2) You can also use map here as:
let data = ["week1_aopCrop", "week1_actCrop", "week2_aopCrop", "week2_actCrop"];
const result = [...new Set(data.map((s) => s.split("_")[0]))];
console.log(result);