The d3.utcHours() function in D3.js is used to return all the hours with date in the given range of start and end time in Coordinated Universal Time (UTC).
Syntax:
d3.utcHours(start, end, step);
Parameters: This function accept three parameters which are given below:
- Start: This parameter holds the given start time.
- end: This parameter holds the given end time.
- step: This is the optional value used to skip hours.
Return Value: This function returns all the possible hours in the given range.
Below programs illustrate the d3.utcHours() function in D3.js:
Example 1:
<!DOCTYPE html> <html> <head>
<title>
D3.js | d3.utcHours() Function
</title>
<script src =
</script>
</head>
<body>
<script>
// Initialising start and end time
var start = new Date(2015, 07, 01, 4, 20);
var end = new Date(2015, 07, 01, 8, 20);
// Calling the utcHours() function
// without step value
var a = d3.utcHours(start, end);
// Getting the hours values
console.log(a);
</script>
</body>
</html> |
Output:
["2015-07-31T23:00:00.000Z", "2015-08-01T00:00:00.000Z", "2015-08-01T01:00:00.000Z", "2015-08-01T02:00:00.000Z"]
Example 2:
<!DOCTYPE html> <html> <head>
<title>
D3.js | d3.utcHours() Function
</title>
<script src =
</script>
</head>
<body>
<script>
// Initialising start and end time
var start = new Date(2015, 07, 01, 1, 20);
var end = new Date(2015, 07, 01, 6, 20);
// Calling the utcHours() function
// with step value
var a = d3.utcHours(start, end, 2);
// Getting the hour values
console.log(a);
</script>
</body>
</html> |
Output:
["2015-07-31T20:00:00.000Z", "2015-07-31T22:00:00.000Z", "2015-08-01T00:00:00.000Z"]
Reference: https://devdocs.io/d3~5/d3-time#timeHours