codeallday31

    const getData = (selectColumns = []) => {
        let subset = object2
        if (columnsOnly.length !== 0) {
            subset = object2.map(obj =>
                Object.fromEntries(
                    columnsOnly
                        .filter(key => key in obj)
                        .map(key => [key, obj[key]])
                )
            )

codeallday31

/**
 * Emulates python's range() built-in. Returns an array of integers, counting
 * up (or down) from start to end. Note that the range returned is up to, but
 * NOT INCLUDING, end.
 *.
 * @param start  integer from which to start counting. If the end parameter is
 *               not provided, this value is considered the end and start will
 *               be zero.
 * @param end    integer to which to count. If omitted, the function will count
 *               up from zero to the value of the start parameter. Note that

codeallday31

function elementGetStyle(element, style) {
    var value = element.style[style];
    if (!value) {
        if (document.defaultView && document.defaultView.getComputedStyle) {
            var css = document.defaultView.getComputedStyle(element, null);
            value = css ? css.getPropertyValue(style) : null;
        } else if (element.currentStyle) {
            value = element.currentStyle[style];
        }
    }

codeallday31

function elementSetStyle(element, style) {
    for (var name in style) {
        var value = style[name];
        if (value == null) value = "";
        element.style[name] = value;
    }
}

codeallday31

function isArray(x) {
    return ((typeof x) == "object") && (x["length"] != null);
}

codeallday31

  function _group_by(list, key) {
      const groupBy = (array, key) => {
          // Return the end result
          return array.reduce((result, currentValue) => {
              // If an array already present for key, push it to the array. Else create an array and push the object
              (result[currentValue[key]] = result[currentValue[key]] || []).push(
                  currentValue
              );
              // Return the current iteration `result` value, this will be taken as next iteration `result` value and accumulate
              return result;