从数据拼接数组

Question

i want to splice an array but index doesn't work

var kode_pelayanan = [];
function deleteKodePelayanan(index){
    kode_pelayanan.splice(index, 1);
    console.log(kode_pelayanan);
}

i tried in console and array for kode_pelayanan is. This array get from input

kode_pelayanan array ["LB1", "LB2", "LHA01", "LHA02"]

but when i run function deleteKodePelayanan() and splice LB2 . the value is

["LB2", "LHA01", "LHA02"]

Answer 1

Try some validation on the index before splice.

function deleteKodePelayanan(index){
  index = parseInt(index,10);
  if (isNaN(index)) {
    // index is not a number
    return;
  } else if (!(index in kode_pelayanan)) {
    // index is a number but the value isn't set
    return;
  }
  kode_pelayanan.splice(index, 1);
}

Answer 2

If I follow the train of thought I think you want to know how to remove an element from an array based on the values of the elements not based on the index. The answer is two steps. Find the index then use splice to remove it.

Use indexOf to find the index first.

var kode_pelayanan = ["LB1", "LB2", "LHA01", "LHA02"];

function deleteKodePelayanan(value){
    var index = kode_pelayanan.indexOf(value);
    if (index >= 0) {
      kode_pelayanan.splice(index, 1);
    }
    console.log(kode_pelayanan);
}

deleteKodePelayanan("LB2"); // => ["LB1", "LHA01", "LHA02"]