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Data Types

Learn about the types of data can be assigned to references and used elsewhere.

Variables and constants in ABJAD can have one of four main types.

  1. مقطع: text or string
  2. رقم: number, including all the natural and decimal numbers
  3. منطق: boolean
  4. User-defined type

String​

A string value must be enclosed by two double quotations. e.g. "!مرحبا بالعالم"

note

A string value cannot span on more than one line.

Number​

A number value includes natural and decimal values between ±5.0 × 10−324 and ±1.7 × 10308 e.g. 12.3

Boolean​

A boolean value can have one of two values صحيح (true) or خطأ (false)

User-Defined Types​

Discussed Later in classes.

Get the Type of a Value​

You can get the type of the value using the نوع keyword followed by parentheses enclosing the value itself.

e.g. This code will print رقم

ثابت رقم باي = 3.14؛
أكتب(نوع(باي))؛

Conversions​

Conversion is allowed between some of the types under some conditions.

Number to String​

Conversion is possible from Number data type to String data type by calling on the function مقطع and passing a number.

e.g. عشرة will have the value of "10".

متغير مقطع عشرة = مقطع(10)؛

String to Number​

Converting a String data type to Number data type happens by calling on the function رقم and passing it a string representation of a number. e.g. خمسة will have the value of 5.

متغير رقم خمسة = رقم("5")؛
danger

The following example will throw an error since the value is not qualified to be a number

متغير رقم عدد_غير_صالح = رقم("5.3.6")؛

Boolean to String​

Converting a Boolean to String happens by calling on the function مقطع and passing it a boolean e.g. جواب will have the value of "صحيح".

متغير مقطع جواب = مقطع(صحيح)؛

String to Boolean​

Converting a String to Boolean happens by calling on the function منطق and passing it a string representation of a boolean value.

e.g. جواب will have the value of خطأ.

متغير منطق جواب = منطق("خطأ")؛
danger

The following example will throw an error since the value is not qualified to be a boolean

متغير منطق جواب_غير_صالح = منطق("صح")؛