Swift - Variables and Constants
Which of the following Swift statements is syntactically correct and uses type inference?
Which of the following Swift statements is syntactically correct and uses type inference?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Check syntax correctness
var score = 100 declares a variable with inferred Int type correctly.Step 2: Identify syntax errors in other options
let message: = "Hello" has misplaced colon, var 2ndValue = 5 starts variable name with digit, let isReady = ? uses invalid assignment.Final Answer:
var score = 100 -> Option CQuick Check:
Correct syntax with type inference = var score = 100 [OK]
Quick Trick: Variable names must start with letters; no misplaced colons [OK]
Common Mistakes:
- Starting variable names with digits
- Misplacing colons in declarations
- Using invalid assignment symbols
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