javascript top method

JavaScript is a commonly used scripting programming language that can achieve rich interactive effects and dynamic web page functions. Among them, the top method is a very common method that can be used to control the browser window position and size. This article will introduce the top method of JavaScript in detail.

1. What is the top method

The Top method refers to the method used to control the position and size of the window in the browser window. Through the top method, we can easily maximize, minimize, move and resize the window. Of course, these operations can only be performed on our own web pages and cannot control the windows of other websites.

2. The syntax of the top method

The syntax of the Top method is very simple. The specific format is as follows:

window.top.method()

Among them, window is the global object, top represents the top-level window of the current window, and method is the specific operation method. Some commonly used methods will be introduced below.

3. Common operating methods of the top method

1. Maximize the window

We can use the top method to maximize the window. The specific method is as follows:

window.top.resizeTo(screen.width,screen.height);

or

window.top.moveTo(0,0);
window.top.resizeTo(screen.width,screen.height);

Among them, screen.width and screen.height represent the width and height of the screen respectively.

2. Minimize the window

We can use the top method to minimize the window. The specific method is as follows:

window.top.minimize();

Note that this method is not a standard method, and the implementation of different browsers may be slightly different.

3. Moving window

We can use the top method to move the window. The specific method is as follows:

window.top.moveBy(x,y);

where, x and y represent the moving distance of the window in the horizontal and vertical directions respectively.

4. Adjust window size

We can use the top method to resize the window. The specific method is as follows:

window.top.resizeBy(width,height);

Among them, width and height represent the adjustment amount of the window in width and height respectively.

4. Summary

The top method of JavaScript is a very common method that can be used to control the browser window position and size. Through the top method, we can achieve operations such as maximizing, minimizing, moving and resizing the window. At the same time, we also need to note that these operations can only be performed on our own web pages and cannot control the windows of other websites.

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