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In Angular template-driven forms, which attribute is used to check if an input value matches a specific pattern?

easy🧠 Conceptual Q2 of 15
Angular - Template-Driven Forms
In Angular template-driven forms, which attribute is used to check if an input value matches a specific pattern?
Apattern
Bmaxlength
Cminlength
Ddisabled
Step-by-Step Solution
Solution:

  1. Step 1: Identify the attribute for pattern matching

    The pattern attribute allows specifying a regular expression that the input value must match.

  2. Step 2: Differentiate from other attributes

    maxlength and minlength control length, not pattern. disabled disables input.

  3. Final Answer:

    pattern -> Option A

  4. Quick Check:

    pattern attribute = regex validation [OK]
Quick Trick: Use 'pattern' to enforce input format with regex [OK]
Common Mistakes:
MISTAKES
  • Confusing 'pattern' with 'maxlength' or 'minlength'
  • Using 'disabled' to validate input
  • Ignoring the need for regex in pattern

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