Check if array has length

validate-array-example-1.js

// example # 1: check if the length property of the passed-in array is 0

function processRecords (records) {
    if (records.length === 0) {
        console.log(`No records to process`);
        return;
    }
  
    records.forEach(record => {
      console.log(`The record is: ${record}`);
    });
}

processRecords(['foo', 'bar', 'baz']);

// The record is: foo
// The record is: bar
// The record is: baz

processRecords([]);
// No records to process