Javascript Shared

Revision as of 12:05, 3 September 2024

General

Shared variables object.
Shared variable lists are available in all scripts.
They are thread safe.
NOTE: Values are stored as plain strings

Create

Retrieve Yate global

var g = Engine.shared;

var g = new Engine.SharedVars("");

Create separate shared variables list

var g = new Engine.Shared("mylist");

Methods

• get(name)

Retrieve a variable as string

Parameters:
name Required variable name

Return:
Value of the variable

• set(name,str)

Set a variable.

Parameters:
name Required variable name
str Required variable value

• create(name[,str])

Create a variable if does not exist.
Do nothing if valriable is present in list.

Parameters:
name Required variable name
str Optional variable value. Create with empty string if this parameter is not given

• inc(name[,wrap])

Atomically increment a variable as unsigned integer

Parameters:
name Required variable name
wrap Optional value to wrap around at, zero, negative or non numeric disables

Return:
Value of the variable before increment, zero if it was not defined or not numeric

• dec(name[,wrap])

Atomically decrement a variable as unsigned integer

Parameters:
name Required variable name
wrap Optional value to wrap around at, zero, negative or non numeric disables

Return:
Value of the variable after decrement, zero if it was not defined or not numeric

• add(name,value,[,wrap])

Atomically add an unsigned integer value to a variable

Parameters:
name Required variable name
value Required value to add
wrap Optional value to wrap around at, zero, negative or non numeric disables

Return:
Value of the variable before addition, zero if it was not defined or not numeric

• sub(name,value,[,wrap])

Atomically substract an unsigned integer value from a variable

Parameters:
name Required variable name
value Required value to substract
wrap Optional value to wrap around at, zero, negative or non numeric disables

Return:
Value of the variable after substraction, zero if it was not defined or not numeric

• clear(name)

Clear (remove) a variable

Parameters:
name Required variable name

• clearAll()

Clear (remove) all variables in list
Does nothing if the list is the global variables list

• exists(name)

Check if a variable exists

Parameters:
name Required variable name

Return:
Boolean true if variable exists, false otherwise

• getVars([params])

Retrieve list variables

Parameters:
params Optional object with desired behaviour

params properties:

• js_props: Boolean. Return property values as Javascript native types. Default: true
• autonum: Boolean. Try to convert variables to numeric/boolean. Default: false.
  Set it when needing to return numbers.
  Ignored if not returning Javascript native types
• prefix: String. Optional prefix for variables. Retrieve only variables whose name starts with given prefix
• skip_prefix: Boolean. Skip prefix when returned. Default: true
  Ignored if prefix is empty

Return:
Object with list variables as properties