@amblines/react-table-filter/src/lib/util.js

> Module creates Excel like Column Filters for Table. The filter list contains all the unique items present in every column. See image below for example.

'use strict';

export const isUndefined = (str, emptyStringCheck) => {
  if (typeof str === 'undefined' || str === null || str === 'undefined' || str === 'null') {
    return true;
  }
  if (emptyStringCheck && typeof str === 'string' && str.toString().trim().length === 0) {
    return true;
  }
  return false;
};

export const isTypeArray = (val) => {
  return Object.prototype.toString.call(val) === '[object Array]' ? true : false;
};

export const isTypeString = (val) => {
  return Object.prototype.toString.call(val) === '[object String]' ? true : false;
};

export const getValForKey = (obj, key) => {
  if (!isUndefined(key)) {
    if (isTypeString(key)) {
      const keyArray = key.split('.');

      if (keyArray.length === 1) {
        return obj[key];
      } else {
        let finalValue = obj;
        let i; let l;
        for (i=0, l=keyArray.length; i < l; i=i+1) {
          const currKey = keyArray[i];
          const currValue = finalValue[currKey];

          if (!isUndefined(currValue)) {
            finalValue = currValue;
          } else {
            finalValue = undefined;
            break;
          }
        }

        return finalValue;
      }
    } else {
      return obj[key];
    }
  }
  return;
};

export const uniq = (array) => {
  if ((array != null && array.length)) {
    const unique = [...new Set(array)];
    return unique;
  }
  return [];
};

export const without = (array, values=[]) => {
  const result = [];

  if (!array.length) {
    return result;
  }

  array.forEach((currItem) => {
    if (values.indexOf(currItem) < 0) {
      result.push(currItem);
    }
  });

  return result;
};

export default {
  isUndefined,
  isTypeArray,
  isTypeString,
  getValForKey,
  uniq,
  without,
};