Custom pipe to round numbers up or down in Angular | Angular in English (Session-151)
In this Angular English tutorial, we’ll create a RoundNumberPipe to easily round numbers up, down, or to the nearest integer directly in Angular templates.
What you’ll learn in this video:
1.How to build a custom number rounding pipe in Angular
2.Using Math.floor(), Math.ceil(), and Math.round() for rounding logic
3.Making the pipe configurable — choose rounding type:
floor → rounds down
ceil → rounds up
round → normal rounding
4.Adding support for decimal precision (e.g., 123.456 → 123.46)
5.Handling negative numbers with rounding
6.Using the pipe in Angular templates ({{ price | round:'ceil' }})
7.Real-world examples — showing prices, percentages, ratings, and scores
FAQ: Angular Round Number Pipe
Q1: How can I round a number up or down in Angular templates?
Q2: Can I round numbers to a specific number of decimal places?
Q3: What’s the difference between ceil, floor, and round in Angular pipe?
Q4: Does this work for negative numbers as well?
Q5: Where should I use a RoundNumberPipe in real-world apps?
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