1 let arr = [1, 2, 3, 10, 4, 5, 1, 3, 5]; 2 let stateNumArr = arr.filter((item, index, array) => { 3 return array.indexOf(item) === index; 4 }); 5 console.log(stateNumArr);
js filter 数组去重
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1 let arr = [1, 2, 3, 10, 4, 5, 1, 3, 5]; 2 let stateNumArr = arr.filter((item, index, array) => { 3 return array.indexOf(item) === index; 4 }); 5 console.log(stateNumArr);