What is the use of the javascript open() method?

In JavaScript, the function of the open() method is to navigate to a specific URL web page or open a new browser window, the syntax format is "window.open(URL,name,features,replace)"; When the parameter URL is empty, a blank web page will be opened.

The operating environment of this tutorial: Windows 7 system, JavaScript version 1.8.5, Dell G3 computer.

window’s open() method is used to navigate to a specific URL or open a new browser window.

Syntax: window.open(URL,name,features,replace)

It receives 4 parameters: the URL to load, the window name, the attribute string and a Boolean value . The following will introduce the parameter settings and return values ​​of window.open.

1. Parameter settings

Parameters Number one: URL to be loaded (optional)

When this parameter is empty, open a blank web page; if it is not empty, navigate to the URL pointed to The web page or open a new browser window to display the web page pointed to by the URL

Parameter 2: Window name (optional)

    refers to the name of the opened window:

##                                                                      

#         2. Only one window with the same name can be created

                                        Contains spaces

4. “_blank”, “_self”, “_top ”, “_parent” is a name with special meaning

#: Display the target web page in a new window; <span style="font-size:18px"><span style="font-size:14px">##                                                                                   </span></span>

: The target webpage is displayed on the upper part of the frame webpage. If there is no definition framework, this effect is the same as _Self ##                                                                                                                                                                                                                                                                                           

If this parameter specifies an existing window, the open() method will no longer create a new window, but will just return the specified window. Quote.

Parameter three: Characteristic string (optional)
Set the parameters of the window, each Parameters are separated by commas

#

# The part or all options listed in Tables can be specified by the name value of the comma separation. No spaces are allowed, as shown in the following example:

 window.open("https://www.baidu.com","_blank","height=400,width=600,top=100,left=100,scrollbars=no");

Parameter four: Boolean value (Boolean value)

This Boolean indicates: whether to replace the currently loaded page in the browser history

The above four parameters usually only need Pass the first argument, the last argument is only used without opening a new window.

2. The return value of window.open

The window.open() method returns a reference to the new window so that we can Windows for more control. Such as:

    myWin= window.open("https://www.baidu.com","_blank","height=400,width=600,top=100,left=100,scrollbars=no");
    myWin.close();         //调用close（）函数关闭新打开的网页
    myWin.resizeTo(500,500);    //调整大小
    myWin.moveTo(300,300);     //移动位置

[Recommended learning: javascript advanced tutorial]

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