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LibraryPineStudy<TPineStudyResult>

Interface

Type parameters​

Name
TPineStudyResult

Indexable​

▪ [key: string]: any

Methods​

init​

Optional

The method is designed to get additional information for an indicator and allows you to initialize variables needed for your data calculations. For example, you can reset a counter with this method. The library calls init when the indicator should be calculated from scratch. For more information, refer to the Constructor article.

Example:

this.init = function(context, inputCallback) {
    var symbol = '#EQUITY';
    var period = PineJS.Std.period(this._context);
    context.new_sym(symbol, period);
};

Signature​

init(ctx: IContext, inputs: Function) => void

Parameters​

NameTypeDescription
ctxIContextAn object containing symbol info along with some useful methods to load/store symbol
inputs<T>(index: number) => TThe inputs callback is an array of input values, placed in order of inputs in Metainfo.

Returns​

​void

main​

Called every time the library wants to calculate the study. Also it's called for every bar of every symbol. Thus, if you request several additional symbols inside your indicator it will increase the count of runs.

Signature​

main(ctx: IContext, inputs: Function) => TPineStudyResult

Parameters​

NameTypeDescription
ctxIContextAn object containing symbol info along with some useful methods to load/store symbol
inputs<T>(index: number) => TThe inputs callback is an array of input values, placed in order of inputs in Metainfo.

Returns​

​TPineStudyResult