javascript手冊-g

getDay method

Returns the day of the week for the specified date.

语法

dateObjectName.getDay()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by getDay is an integer corresponding to the day of the week: zero for Sunday, one for Monday, two for Tuesday, and so on.

例子

The second statement below assigns the value 1 to weekday, based on the value of the date object Xmas95. This is because December 25, 1995 is a Monday.

Xmas95 = new Date(December 25, 1995 23:15:00)weekday = Xmas95.getDay()

getHours method

Returns the hour for the specified date.

语法

dateObjectName.getHours()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by getHours is an integer between 0 and 23.

例子

The second statement below assigns the value 23 to the variable hours, based on the value of the date object Xmas95.

Xmas95 = new Date(December 25, 1995 23:15:00)hours = Xmas95.getHours()

相关

getMinutes method

Returns the minutes in the specified date.

语法

dateObjectName.getMinutes()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by getMinutes is an integer between 0 and 59.

例子

The second statement below assigns the value 15 to the variable minutes, based on the value of the date object Xmas95.

Xmas95 = new Date(December 25, 1995 23:15:00)minutes = Xmas95.getMinutes()

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getMonth method

Returns the month in the specified date.

语法

dateObjectName.getMonth()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by getMonth is an integer between zero and eleven. Zero corresponds to January, one to February, and so on.

例子

The second statement below assigns the value 11 to the variable month, based on the value of the date object Xmas95.

Xmas95 = new Date(December 25, 1995 23:15:00)month = Xmas95.getDate()

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getSeconds method

Returns the seconds in the current time.

语法

dateObjectName.getSeconds()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by getSeconds is an integer between 0 and 59.

例子

The second statement below assigns the value 30 to the variable secs, based on the value of the date object Xmas95.

Xmas95 = new Date(December 25, 1995 23:15:30)secs = Xmas95.getSeconds()

相关

getTime method

Returns the numeric value corresponding to the time for the specified date.

语法

dateObjectName.getTime()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by the getTime method is the number of milliseconds since 1 January 1970 00:00:00. You can use this method to help assign a date and time to another date object.

例子

The following example assigns the date value of theBigDay to sameAsBigDay.

theBigDay = new Date(July 1, 1999)sameAsBigDay = new Date()sameAsBigDay.setTime(theBigDay.getTime())

相关

getTimezoneOffset method

Returns the time zone offset in minutes for the current locale.

语法

dateObjectName.getTimezoneOffset()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The time zone offset is the difference between local time and GMT. Daylight savings time prevents this value from being a constant.

例子

x = new Date()currentTimeZoneOffsetInHours = x.getTimezoneOffset()/60

getYear method

Returns the year in the specified date.

语法

dateObjectName.getYear()

dateObjectName is either the name of a date object or a property of an existing object.

方法

Date

描述

The value returned by getYear is the year less 1900. For example, if the year is 1976, the value returned is 76.

例子

The second statement below assigns the value 95 to the variable year, based on the value of the date object Xmas95.

Xmas95 = new Date(December 25, 1995 23:15:00)year = Xmas95.getYear()

相关

go method

Loads a URL from the history list.

语法

history.go(delta | location)

方法

history

描述

The go method navigates to the location in the history list determined by the argument that you specify. You can interactively display the history list by choosing History from the Window menu. Up to 10 items in the history list are also displayed on the Go menu.

The delta argument is a positive or negative integer. If delta is greater than zero, the go method loads the URL that is that number of entries forward in the history list; otherwise, it loads the URL that is that number of entries backward in the history list. If delta is 0, Navigator reloads the current page.

The location argument is a string. Use location to load the nearest history entry whose URL contains location as a substring. The location to URL matching is case-insensitive. Each section of a URL contains different information. See the location object for a 描述 of the URL components.

例子

The following button navigates to the nearest history entry that contains the string home.netscape.com:

<P><INPUT TYPE=button VALUE=Go   onClick=history.go(home.netscape.com)>

The following button navigates to the URL that is three entries backward in the history list:

<P><INPUT TYPE=button VALUE=Go   onClick=history.go(-3)>

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