@tokens-studio/graph-engine/dist/nodes/series/fibonacci.js

An execution engine to handle Token Studios generators and resolvers

import { Node } from '../../programmatic/node.js';
import { NumberSchema } from '../../schemas/index.js';
import { arrayOf } from '../../schemas/utils.js';
import { setToPrecision } from '../../utils/precision.js';
export default class NodeDefinition extends Node {
    static title = 'Fibonacci Series';
    static type = 'studio.tokens.series.fibonacci';
    static description = 'Generates the Fibonacci sequence where each number is the sum of the previous two numbers';
    constructor(props) {
        super(props);
        this.addInput('length', {
            type: {
                ...NumberSchema,
                default: 8
            }
        });
        this.addInput('startFirst', {
            type: {
                ...NumberSchema,
                default: 0
            }
        });
        this.addInput('startSecond', {
            type: {
                ...NumberSchema,
                default: 1
            }
        });
        this.addInput('precision', {
            type: {
                ...NumberSchema,
                default: 2
            }
        });
        this.addOutput('array', {
            type: arrayOf(NumberSchema)
        });
    }
    execute() {
        const { length, startFirst, startSecond, precision } = this.getAllInputs();
        const values = new Array(length).fill(0);
        if (length <= 0) {
            this.outputs.array.set([]);
            return;
        }
        // Add first term
        values[0] = setToPrecision(startFirst, precision);
        if (length === 1) {
            this.outputs.array.set(values);
            return;
        }
        // Add second term
        values[1] = setToPrecision(startSecond, precision);
        // Generate remaining length
        for (let i = 2; i < length; i++) {
            const nextValue = values[i - 1] + values[i - 2];
            values[i] = setToPrecision(nextValue, precision);
        }
        this.outputs.array.set(values);
    }
}
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