ds-algo-study/DS-n-Algos/Dynamic-Programming/dynamic-time-warping/lib/matrix.js

Just experimenting with publishing a package

var createArray = function ( length, value ) {
  if ( typeof length !== 'number' ) {
    throw new TypeError( 'Invalid length type' );
  }

  if ( typeof value === 'undefined' ) {
    throw new Error( 'Invalid value: expected a value to be provided' );
  }

  var array = new Array( length );
  for ( var index = 0; index < length; index++ ) {
    array[ index ] = value;
  }

  return array;
};

var createMatrix = function ( m, n, value ) {
  var matrix = [];
  for ( var rowIndex = 0; rowIndex < m; rowIndex++ ) {
    matrix.push( createArray( n, value ) );
  }

  return matrix;
};

module.exports = {
  create: createMatrix
};