Filtering and conditional logic in No-Code - Step-by-Step Execution

Concept Flow - Filtering and conditional logic

Start with data list

↓

Check each item

↓

Condition true?

No→Skip item

Yes↓

Keep item

↓

Move to next item

Back to Check↓

All items checked?

Yes→Filtered list ready

↩Back to Check

This flow shows how each item in a list is checked against a condition. Items that meet the condition are kept; others are skipped.

Execution Sample

No-Code

data = [5, 12, 7, 20]
filtered = []
for item in data:
  if item > 10:
    filtered.append(item)
print(filtered)

This code keeps only numbers greater than 10 from the list.

Analysis Table

Step	Current item	Condition (item > 10)	Action	Filtered list
1	5	False	Skip item	[]
2	12	True	Add to filtered	[12]
3	7	False	Skip item	[12]
4	20	True	Add to filtered	[12, 20]
End	-	-	All items checked	[12, 20]

💡 All items checked, filtering complete.

State Tracker

Variable	Start	After 1	After 2	After 3	After 4	Final
item	-	5	12	7	20	-
filtered	[]	[]	[12]	[12]	[12, 20]	[12, 20]

Key Insights - 2 Insights

Why is the number 5 not added to the filtered list?

Because at step 1 in the execution_table, the condition '5 > 10' is False, so the action is to skip the item.

Does the filtered list change when an item does not meet the condition?

No, as shown in steps 1 and 3, when the condition is False, the filtered list remains unchanged.

Visual Quiz - 3 Questions

Look at the execution_table at step 2. What is the filtered list after adding the item?

A [7, 12]

B [5, 12]

C [12]

D []

💡 Hint

Check the 'Filtered list' column at step 2 in the execution_table.

At which step does the condition become false for the first time?

A Step 2

B Step 1

C Step 3

D Step 4

💡 Hint

Look at the 'Condition' column in the execution_table for the first False value.

If the condition changed to 'item >= 7', what would be the filtered list after step 3?

A [12, 7]

B [12]

C [5, 12, 7]

D [7]

💡 Hint

Check which items satisfy 'item >= 7' up to step 3 in the variable_tracker.

Concept Snapshot

Filtering means checking each item in a list.
Use conditional logic to decide if an item should be kept.
If condition is true, keep the item; else skip it.
Repeat for all items to get a filtered list.

Full Transcript

Filtering and conditional logic means going through each item in a list and checking if it meets a rule. If it does, we keep it; if not, we skip it. For example, checking if numbers are greater than 10 and keeping only those. We start with an empty filtered list and add items that pass the condition. This process repeats until all items are checked, resulting in a new list with only the items that meet the condition.