1、 var a = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,22,23,24,22,26,27]; var result = []; for(var i in a) { if(Math.abs(a[i]-21 > 5) { result.push(a[i]); } } alert(result.join(","));2、 var a = [0,1,2,3,4,5,6,7,8,9,20,11,12,13,20,23,24,22,26,27]; var count = 0; for(var i in a) { if(a[i] == 20) { if(count == 1) { a[i] = newVal; break; } count++ } }
var a = [0,1,2,3,4,5,6,7,8,9,10,11,12,13,22,23,24,22,26,27];
var result = [];
for(var i in a) {
if(Math.abs(a[i]-21 > 5) {
result.push(a[i]);
}
}
alert(result.join(","));2、
var a = [0,1,2,3,4,5,6,7,8,9,20,11,12,13,20,23,24,22,26,27];
var count = 0;
for(var i in a) {
if(a[i] == 20) {
if(count == 1) {
a[i] = newVal;
break;
}
count++
}
}