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TurboScript Reference

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Nidin Vinayakan edited this page Mar 25, 2017 · 3 revisions

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This part of the TurboScript section serves as a repository of facts about the TurboScript language. Read more about this reference. Most of this reference is redundant to JavaScript language reference. You may check difference between JavaScript and TurboScript for non-standard language features added in to TurboScript.

Global Objects

This chapter documents all the TurboScript standard built-in objects, along with their methods and properties.

Icon Meaning
🍼 Need improvement
🚧 Implementing
🕥 Planned
💥 Not all targets support
❗️ Bug in Implementation
👎 Not usable
❌ Removed
⚠️ Deprecated

Value properties

These global properties return a simple value; they have no properties or methods.

Function properties

These global functions—functions which are called globally rather than on an object—directly return their results to the caller.

Fundamental objects

These are the fundamental, basic objects upon which all other objects are based. This includes objects that represent general objects, functions, and errors.

Numbers and dates

These are the base objects representing numbers, dates, and mathematical calculations.

Text processing

These objects represent strings and support manipulating them.

Indexed collections

These objects represent collections of data which are ordered by an index value. This includes (typed) arrays and array-like constructs.

Keyed collections

These objects represent collections which use keys; these contain elements which are iterable in the order of insertion.

Vector collections

SIMD vector data types are objects where data is arranged into lanes.

Structured data

These objects represent and interact with structured data buffers and data coded using JavaScript Object Notation (JSON).

Statements

This chapter documents all the TurboScript statements and declarations.

Control flow

Block

A block statement is used to group zero or more statements. The block is delimited by a pair of curly brackets.

break

Terminates the current loop, switch, or label statement and transfers program control to the statement following the terminated statement.

continue

Terminates execution of the statements in the current iteration of the current or labeled loop, and continues execution of the loop with the next iteration.

Empty

An empty statement is used to provide no statement, although the TurboScript syntax would expect one.

if...else

Executes a statement if a specified condition is true. If the condition is false, another statement can be executed.

switch

Evaluates an expression, matching the expression's value to a case clause, and executes statements associated with that case.

throw 💥 🕥

Throws a user-defined exception.

try...catch 💥 🕥

Marks a block of statements to try, and specifies a response, should an exception be thrown.

Declarations

var

Declares a variable, optionally initializing it to a value.

let

Declares a block scope local variable, optionally initializing it to a value.

const

Declares a read-only named constant.

Functions and classes

function

Declares a function with the specified parameters.

return

Specifies the value to be returned by a function.

class

Declares a class.

Iterations

for

Creates a loop that consists of three optional expressions, enclosed in parentheses and separated by semicolons, followed by a statement executed in the loop.

while

Creates a loop that executes a specified statement as long as the test condition evaluates to true. The condition is evaluated before executing the statement.

Others

debugger

Invokes any available debugging functionality. If no debugging functionality is available, this statement has no effect.

export

Used to export functions to make them available for imports in external modules, another scripts.

import

Used to import functions exported from an external module, another script.

label

Provides a statement with an identifier that you can refer to using a break or continue statement.

Expressions and operators

This chapter documents all the TurboScript expressions and operators.

Primary expressions

Basic keywords and general expressions in TurboScript.

this

The this keyword refers to the function's execution context.

function

The function keyword defines a function expression.

class

The class keyword defines a class expression.

( )

Grouping operator.

Left-hand-side expressions

Left values are the destination of an assignment.

Property accessors

Member operators provide access to a property or method of an object (object.property).

new

The new operator creates an instance of a constructor.

super

The super keyword calls the parent constructor.

Increment and decrement

Postfix/prefix increment and postfix/prefix decrement operators.

A++

Postfix increment operator.

A--

Postfix decrement operator.

++A

Prefix increment operator.

--A

Prefix decrement operator.

Unary operators

A unary operation is operation with only one operand.

delete

The delete operator deletes a property from an object.

void

The void operator discards an expression's return value.

typeof

The typeof operator determines the type of a given object.

+

The unary plus operator converts its operand to Number type.

-

The unary negation operator converts its operand to Number type and then negates it.

~

Bitwise NOT operator.

!

Logical NOT operator.

Arithmetic operators

Arithmetic operators take numerical values (either literals or variables) as their operands and return a single numerical value.

+

Addition operator.

-

Subtraction operator.

/

Division operator.

*

Multiplication operator.

%

Remainder operator.

Relational operators

A comparison operator compares its operands and returns a boolean value based on whether the comparison is true.

instanceof

The instanceof operator determines whether an object is an instance of another object.

<

Less than operator.

>

Greater than operator.

<=

Less than or equal operator.

>=

Greater than or equal operator.

Equality operators

The result of evaluating an equality operator is always of type Boolean based on whether the comparison is true.

==

Equality operator.

!=

Inequality operator.

===

Identity operator.

!==

Nonidentity operator.

Bitwise shift operators

Operations to shift all bits of the operand.

<<

Bitwise left shift operator.

>>

Bitwise right shift operator.

>>>

Bitwise unsigned right shift operator.

Binary bitwise operators

Bitwise operators treat their operands as a set of 32 bits (zeros and ones) and return standard JavaScript numerical values.

&

Bitwise AND.

|

Bitwise OR.

^

Bitwise XOR.

Binary logical operators

Logical operators are typically used with boolean (logical) values, and when they are, they return a boolean value.

&&

Logical AND.

||

Logical OR.

Conditional (ternary) operator

(condition ? ifTrue : ifFalse)

The conditional operator returns one of two values based on the logical value of the condition.

Assignment operators

An assignment operator assigns a value to its left operand based on the value of its right operand.

=

Assignment operator.

*=

Multiplication assignment.

/=

Division assignment.

%=

Remainder assignment.

+=

Addition assignment.

-=

Subtraction assignment

<<=

Left shift assignment.

>>=

Right shift assignment.

>>>=

Unsigned right shift assignment.

&=

Bitwise AND assignment.

^=

Bitwise XOR assignment.

|=

Bitwise OR assignment.

⚠️ This is an experimental technology

🚧 TurboScript documentation is under construction 🚧

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