In this case, in order to avoid nested loops, you can group Support_Settings__c records by RecordTypeId__c field. After that on iterating Case records in the trigger, just get value from Map by Case RecortdTypeId field value.
Full Answer
How do you avoid nested loops?
Avoid nested loops with itertools. You can use itertools. product() to get all combinations of multiple lists in one loop, and you can get the same result as nested loops. Since it is a single loop, you can simply break under the desired conditions. Adding the argument of itertools.
What can I use instead of a nested loop?
Even so, you can:use one “for” and handle boundary-checking and counting within the loop.use recursion with a terminating condition.use a single or multiple “while” (and optionally do… ... use “for each” (or just “for” in some languages), if you are doing straight enumeration of file elements, associative arrays etc.
Should nested loops be avoided?
One reason to avoid nesting loops is because it's a bad idea to nest block structures too deeply, irrespective of whether they're loops or not.
How do you prevent a loop in a loop?
The complexity of having nested loops in your case is O(n * m) - n the length of orderArr , and m the length of myArr . This solution complexity is O(n + m) because we're creating the dictionary object using Array#reduce with complexity of O(m), and then filtering the orderArray with a complexity of O(n).
What is faster than a nested loop?
We can see that in the case of nested loops, list comprehensions are faster than the ordinary for loops, which are faster than while. In this case, we have 100.000 (100×1.000) integer elements in each list. This example is slightly slower than the one with 100.000 elements and a single loop.
What is one reason to use nested loops?
Nested loops are useful when for each pass through the outer loop, you need to repeat some action on the data in the outer loop. For example, you read a file line by line and for each line you must count how many times the word “the” is found.
How many nested for loops is too many?
Microsoft BASIC had a nesting limit of 8. @Davislor: The error message refers to the stack size in the compiler, which is also a program, and which is recursively processing the nested-looped construct.
How do you reduce two for loops?
3 AnswersCreate an array holding 60 entries with the remainder of seconds%60 initialized to all zeroes.Calculate the remainder of each song and increment the related entry in the array.Iterate over all possible remainders (1..29)More items...•
Is 3 nested for loops bad?
It's a practice to avoid as much as possible because the number of nested loops and efficiency are directly connected. If you have 1 nested loop complexity of algorithm is on average O(n)2 and 2 nested loops complexity increase to O(n)3.
Is map better than for loop?
map does exactly the same thing as what the for loop does, except that map creates a new array with the result of calling a provided function on every element in the calling array.
Is map faster than for loop?
map() works way faster than for loop.
Is list comprehension faster than for loop?
Because of differences in how Python implements for loops and list comprehension, list comprehensions are almost always faster than for loops when performing operations. Below, the same operation is performed by list comprehension and by for loop.