Here is the code :
for (i = 0; i < data.RecruitingGroups.length; i++) {
data.RecruitingGroups[i].id = i;
if (data.RecruitingGroups[i].Rule.Rules != null) {
for (j = 0; j < data.RecruitingGroups[i].Rule.Rules.length; i++) {
data.RecruitingGroups[i].Rule.Rules[j].id = j;
}
}
}
Problem is that sometimes RecruitingGroups[].Rule is null. So I tried to verify it was not null before continuing and running the next for loop, but it still throws the error:
Uncaught TypeError: Cannot read property 'Rules' of null
How can i bypass this error.
You're testing if Rule.Rules
is null
. That's not the problem; Rule
itself is null
, as evidenced by the error message. You need to test both Rule
and Rule.Rules
if either can be null.
Try
if (data.RecruitingGroups[i].Rule && data.RecruitingGroups[i].Rule.Rules) {
your second loop needs to increment j++
not i++
. =)
if (data.RecruitingGroups[i].Rule && data.RecruitingGroups[i].Rule.Rules) {
for (j = 0; j < data.RecruitingGroups[i].Rule.Rules.length; i++) {
data.RecruitingGroups[i].Rule.Rules[j].id = j;
}
}
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