Sub-Expressions

This section describes sub-expressions.

A portion of an expression can grouped as a sub-expression using round brackets: (...).

When sub-expressions are used, the order of evaluation will be affected as described below:

1. Inner sub-expressions are evaluated before outer sub-expressions.

2. Sub-expressions are evaluated before the base expression.

Examples of sub-expressions:

1. Sub-expressions are evaluated first:

# "1 + 2" is evaluated first, because "(1 + 2)" is a sub-expression
(1 + 2) * 3;

# The above expression is an alias of:
integer.multiply(integer.add(1,2),3); 

2. Inner sub-expressions are evaluated first:

# "2 - 4" is evaluated first, 
# because "(2 - 4)" is an inner sub-expression
(1 + (2 - 4)) * 3;

# The above expression is an alias of:
integer.multiply(integer.add(1,integer.subtract(2,4)),3); 

Last update: 2017.

Table of Contents

 About This Book

 Introduction of H Language

 Syntax

 Data Types

 Variables

Expressions

 What Is an Expression

 Operations Are Aliases of Function Calls

 Evaluation Order of Multiple Operators

Sub-Expressions

 Statements

 "boolean" Data Type

 "integer" Data Type

 "string" Data Type

 "real" Data Type

 "array" Data Type

 Source Code Packages

 Classes and Objects

 Object Oriented Programming

 Inheritance - Object Attachments

 Encapsulation - Private Members

 References

 PDF Printing Version