JavaScript Built-in Objects

In this lesson you will learn JavaScript Built-in Objects. JavaScript built-in object contains Array, String, Date/time.

JavaScript Built-in Objects

Object Methods Description
Array Object concat() Concate the two or more string.
join() join the two or more array string.
reverse() reverse the array string.
toString() Convert the array into string array.
Object Methods Description
String Object anchor() Create an Anchor.
big() Big Font display into string.
bold() bold style display into string.
fixed() fixed font display into string.
FontColor() Font Color display into string.
FontSize() Font Size display into string.
italic() italic style display into string.
link() link display into string.
small() small text display into string.
strike() strike text display into string.
sub() sub style display into string.
sup() sup style display into string.
toLowerCase toLowerCase text display into string.
toUpperCase toUpperCase text display into string.
Object Methods Description
Date/time Objects getDate() Get the Date of the Month.
getDay() Get the Day of the Week.
getFullYear() Get the Full Year in four Digit.
getHours() Get the Hours between 0 to 23.
getMilliseconds() Get the Milliseconds between 0 to 999.
getMinutes() Get the Minutes between 0 to 59.
getMonth() Get the Month between 0 to 11.
getSeconds() Get the Seconds between 0 to 59.
getTime() Get the Milliseconds since Jan 1, 1970.


getUTCDate() Get the Universal Time Date of the Month.
getUTCFullYear() Get the Universal Time Full Year in four Digits.
getUTCHours() Get the Universal Time Hours between 0 to 23.
getUTCMilliseconds() Get the Universal Time Milliseconds (0 to 999).
getUTCMinutes() Get the Universal Time Minutes between 0 to 59.
getUTCMonth() Get the Universal Time Month between 0 to 11.
getUTCSeconds() Get the Universal Time Seconds between 0 to 59.


setDate() Set the Date of the Month.
setFullYear() Set the Full Year in four Digit.
setHours() Set the Hours between 0 to 23.
setMilliseconds() Set the Milliseconds between 0 to 999.
setMinutes() Set the Minutes between 0 to 59.
setMonth() Set the Month between 0 to 11.
setSeconds() Set the Seconds between 0 to 59.
setTime() Set the Milliseconds since Jan 1, 1970.


setUTCDate() Set the Universal Time Date of the Month.
setUTCFullYear() Set the Universal Time Full Year in four Digits.
setUTCHours() Set the Universal Time Hours between 0 to 23.
setUTCMilliseconds() Set the Universal Time MilliSeconds (0 to 999).
setUTCMinutes() Set the Universal Time Minutes between 0 to 59.
setUTCMonth() Set the Universal Time Month between 0 to 11.
setUTCSeconds() Set the Universal Time Seconds between 0 to 59.


toString() Converts the Date object into string.
toUTCString() Converts the Date object into Universal Time string.