You want to create a custom pipe truncate that shortens a string to a given length passed as a parameter. Which of these pipe transform method signatures correctly supports a parameter for length?

hard📝 Application Q15 of 15

Angular - Pipes

You want to create a custom pipe truncate that shortens a string to a given length passed as a parameter. Which of these pipe transform method signatures correctly supports a parameter for length?

Atransform(value: string, length: number): string

Btransform(value: string): string

Ctransform(length: number, value: string): string

Dtransform(): string

Step-by-Step Solution

Solution:

Step 1: Recall pipe transform method signature
The first argument is the value, followed by optional parameters.
Step 2: Check parameter order and types
transform(value: string, length: number): string correctly has value first, then length parameter.
Final Answer:
transform(value: string, length: number): string -> Option A
Quick Check:
Pipe transform(value, params...) signature [OK]

Quick Trick: First argument is value, next are parameters in transform() [OK]

Common Mistakes:

Swapping parameter order
Omitting parameters
Using no parameters at all

Master "Pipes" in Angular

9 interactive learning modes - each teaches the same concept differently

Learn Why Deep Visual Try Challenge Project Recall Perf

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions

More Angular Quizzes

You want to create a custom pipe truncate that shortens a string to a given length passed as a parameter. Which of these pipe transform method signatures correctly supports a parameter for length?

Step 1: Recall pipe transform method signature

Step 2: Check parameter order and types

Final Answer:

Quick Check:

Want More Practice?