Concatenation, length and case

Build the idea

Start with the concept and its key vocabulary.

Key idea

Use concatenation, length, uppercase and lowercase operations in ERL and Python.

Concatenation joins strings with + and does not add spaces automatically. ERL uses text.length, text.upper and text.lower. Python uses len(text), text.upper() and text.lower(). Cast a number with str() before joining it to text.

String manipulation

Performing operations on strings, such as joining, measuring or changing case.

Concatenation

Joining two or more strings using the + operator.

Length

The number of characters contained in a string.

Case conversion

Changing letters to uppercase or lowercase without changing the original wording.

Keep these in mind

Every concatenated value must be a string.
Add an explicit string containing a space when one is needed.
ERL case operations are properties without brackets; Python methods use brackets.
String length counts every character, including spaces and digits.

Build the idea

Start with the concept and its key vocabulary.

Key idea

Use concatenation, length, uppercase and lowercase operations in ERL and Python.

String manipulation

Performing operations on strings, such as joining, measuring or changing case.

Concatenation

Joining two or more strings using the + operator.

Length

The number of characters contained in a string.

Case conversion

Changing letters to uppercase or lowercase without changing the original wording.

Keep these in mind

Every concatenated value must be a string.
Add an explicit string containing a space when one is needed.
ERL case operations are properties without brackets; Python methods use brackets.
String length counts every character, including spaces and digits.