Question

How can join an array into a string and at the same time enclosing each value into this

‘1/2/12′,’15/5/12’

for (var i in array) {
    dateArray.push(array[i].date);
}
dateString=dateArray.join('');
console.log(dateString);

Answer 1

Use Array.map to wrap each entry in quotes and then join them.

var dates = ['1/2/12','15/5/12'];
const datesWrappedInQuotes = dates.map(date => `'${date}'`);
const withCommasInBetween = datesWrappedInQuotes.join(',')
console.log( withCommasInBetween );