Contents

class Triangle {
  constructor(rows) {
    this.rows = this.fillRows(rows);
    this.lastRow = this.rows[this.rows.length - 1];
  }

  sumElements(element, index, array) {
    this.push(element + (array[index + 1] || 0));
  }

  fillRows(rows) {
    const result = [[1]];
    for (let x = 1; x < rows; x++) {
      const newRow = [1];
      result[x - 1].forEach(this.sumElements, newRow);
      result.push(newRow);
    }
    return result;
  }
}

export default Triangle;

Version data entries

185 entries across 185 versions & 1 rubygems

Version	Path
trackler-2.2.1.38	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.37	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.36	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.35	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.34	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.33	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.32	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.31	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.30	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.29	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.28	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.27	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.26	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.25	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.24	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.23	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.22	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.21	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.20	tracks/ecmascript/exercises/pascals-triangle/example.js
trackler-2.2.1.19	tracks/ecmascript/exercises/pascals-triangle/example.js