Js อาเรย์ lastindexof
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จาวาสคริปต์ได้เมื่อรายการที่อยู่ในตารางคู่ลำดับ
var colors = ["red","blue","green"];
var green = colors[colors.length - 1]; //get last item in the array
lastindexof
var numbers = [2, 5, 9, 2];
numbers.lastIndexOf(2); // 3
numbers.lastIndexOf(7); // -1
numbers.lastIndexOf(2, 3); // 3
numbers.lastIndexOf(2, 2); // 0
numbers.lastIndexOf(2, -2); // 0
numbers.lastIndexOf(2, -1); // 3หน้าคล้ายกัน
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