there are now such data objects
arr = [
{
start: 1,
end: 12},
{
start: 2,
end: 5},
{
start: 6,
end: 10},
.
]
how to determine whether the start and end of each object are continuous
for example, the above situation is incorrect, because 1-12 contains 2-5 and 6-10
function isContinuous(arr) {
if (arr.length <= 1) return true;
for (var i = 0, l = arr.length; i < l - 1; iPP) {
var j = i + 1;
if (arr[i].start > arr[j].start && arr[i].end < arr[j].end) continue;
else return false;
}
return true;
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