prajapati-parth

chunkArray(arr, size) {
    let arrLength = arr.length,
      mainLength = Math.ceil(arrLength/size),
      mainArray = [],
      chunkArray = []

      for(var i=1; i<=arrLength; i++) {
        if (i % size === 1) {
          // starting new chunk -> clear chunk array and push
          chunkArray = []

prajapati-parth

let items = [
  //unknown number of items
]

// normal for loop
// here items.length is calculated each time the loop cycles
for (let i=0; i<items.length; i++) {
  // inside for
}

prajapati-parth

function rowClassNameFormat(row, rowIdx) {
  // row is whole row object
  // rowIdx is index of row
  return rowIdx % 2 === 0 ? 'td-column-function-even-example' : 'td-column-function-odd-example';
}

class TrClassStringTable extends React.Component {
  render() {
    return (
      <BootstrapTable data={ products } trClassName={this.rowClassNameFormat}>