recalculate()

recalculate() Utility Functions

Executes a callback function on the specified number of bars back.

 

Syntax

recalculate( [ NumberBars ,] CallbackFn )

 

Parameters

Parameter:	Description:	Default:
NumberBars	[Optional]  An integer representing the number of bars ago on which a callback function will be executed.	Downloaded the number of bars in chart/grid
CallbackFn	Function to execute for each bar. Has no input parameters.	n/a

 

Notes

Only available in versions 11.8 or later.

 

Code Examples

Using of an anonymous function:

 
setPriceStudy(true);
var bInit = false;
var xClose = null;
var i = 0;

function main(){
	if (!bInit) {
		xClose = close();
		bInit = true;
	};
	var nLastClose = xClose.getValue(0);
	if (isLastBarOnChart()) {
		clearShape(); 
                //checks and displays bars whose close is higher 
                //than the current price using an anonymous function 
		recalculate(function() {
			var nClose = xClose.getValue(0);
			if (nClose > nLastClose) drawShapeRelative(0, AboveBar1, Shape.CIRCLE, null, Color.lime, Shape.PRESET | Shape.CENTER, i++);
		});
	};
}

 

Using of a named function:

setPriceStudy(true);
var bInit = false;
var xClose = null;
var i = 0;

function main(){
	if (!bInit){
		xClose = close();
		bInit = true;
	};
	var nLastClose = xClose.getValue(0);
	function Draw() {
		var nClose = xClose.getValue(0);
		if (nClose > nLastClose) drawShapeRelative(0, AboveBar1, Shape.CIRCLE, null, Color.lime, Shape.PRESET | Shape.CENTER, i++);
	};
	if (isLastBarOnChart()){
		clearShape(); //checks 10 bars back and displays bars whose close is higher //than the current price using a named function "Draw" 
		recalculate(10, Draw); 
	};
}

 

See Also

Core JavaScript