Joey Javas

The current month can be determined in JavaScript by using the getMonth method of the JavaScript date object, as follows:

var dteNow = new Date();
document.write(dteNow.getMonth());

The value returned by the getMonth method is an integer value between 0 and 11, with 0 being January and 11 being December. (Note that the date is determined from the client machine date.) To convert this integer to a string representation of the month, use a switch statement:

var intMonth = dteNow.getMonth();
var strMonth = '';

switch (intMonth)
{
case 0: strMonth = 'January'; break;
case 1: strMonth = 'February'; break;
case 2: strMonth = 'March'; break;
case 3: strMonth = 'April'; break;
case 4: strMonth = 'May'; break;
case 5: strMonth = 'June'; break;
case 6: strMonth = 'July'; break;
case 7: strMonth = 'August'; break;
case 8: strMonth = 'September'; break;
case 9: strMonth = 'October'; break;
case 10: strMonth = 'November'; break;
case 11: strMonth = 'December'; break;
}

document.write(strMonth);

Related articles:
JavaScript Date Object
JavaScript to Get the Day of the Week
JavaScript to Get the Current Year
JavaScript Switch Case Statement Example

The JavaScript string object contains an indexOf method. It returns the index in the string of the first occurrence of a specified character. The index is numbered starting at 0. For example:

var strTest = 'only one day';
document.write(strTest.indexOf('n'));

The index returned in the preceding example is 1, as 'n' is the second character in the string and string indexes are counted starting at 0.

The indexOf method accepts an optional second argument – the position at which to begin the search.

var strTest = 'only one day';
document.write(strTest.indexOf('n',2));

In this example the index returned is 6. Since the search started at the second character position, the 'n' that exists at character position 1 is skipped and the next 'n' is searched for, which exists at position 6.

The current year can be retrieved in JavaScript by using the getFullYear method of the Date object, as follows:

var dteNow = new Date();
var intYear = dteNow.getFullYear();
document.write(intYear);

The day of the week can be retrieved in JavaScript by using the getDay method JavaScript’s Date object, as follows:

var dteNow = new Date();
var dteToday = dteNow.getDay();
document.write(dteToday);

The value returned by getDay is between 0 (Sunday) and 6 (Saturday). To convert this to a string representing the day of the week, use a switch statement.

var strDay = '';

switch(dteToday)
{
case 0: strDay = 'Sunday'; break;
case 1: strDay = 'Monday'; break;
case 2: strDay = 'Tuesday'; break;
case 3: strDay = 'Wednesday'; break;
case 4: strDay = 'Thursday'; break;
case 5: strDay = 'Friday'; break;
case 6: strDay = 'Saturday'; break;
}

document.write(strDay);

Related articles:
JavaScript Date Object
JavaScript Switch Case Statement Example