CODEWITHSUNDEEP
javascriptloopswhile-loopecmascript-6
Palaniichuk Dmytro
Palaniichuk Dmytro

Reputation: 3173

JavaScript loop between date range and return right format

How should I iterate between time range and set each day a new data in format YYYY-mm-dd for some filed in the object? 

const index =  (time) =>  {
return {index: `time-&{time}`} // YYYY-mm-dd
}

const start = new Date(2018, 03, 28);
const end = new Date(2019, 03, 28);


let loop = new Date(start); // should be let loop here I guess
while(loop <= end){         

   var newDate = loop.setDate(loop.getDate() + 1);
   loop = new Date(newDate).toISOString().substring(0, 10);
   index(loop)
}

Upvotes: 1

Views: 1017

Answers (1)

amitdigga
amitdigga

Reputation: 7168

Some corrections were needed.

Use ${} instead of &{} in string for variables.

Dates can be compared with date.getTime() which is a

The getTime() method returns the number of milliseconds between midnight of January 1, 1970 and the specified date.

Just check beginning and end condition.

const index = (time) => {
  return {
    index: `time-${time}`
  } // YYYY-mm-dd
}

const start = new Date(2018, 03, 28);
const endTime = new Date(2018, 04, 28).getTime();


let loop = new Date(start);
while (loop.getTime() <= endTime) {
  let nextDate = loop.setDate(loop.getDate() + 1);
  loop = new Date(nextDate);
  console.log(index(loop.toISOString().substring(0, 10)))
}

Upvotes: 1

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