How to prevent page refresh with JavaScript

How to disable page refresh in JavaScript: 1. Disable F5 refresh, the code is [if (event.keyCode == 116)]; 2. Disable the right-click pop-up menu, the code is [document.oncontextmenu = function () 】.

The operating environment of this tutorial: windows10 system, javascript1.8.5, this article is applicable to all brands of computers.

How to disable page refresh in JavaScript:

The JavaScript code to disable page refresh is as follows:

1. Disable F5 refresh

document.onkeydown = function ()
{
    if (event.keyCode == 116) {
        event.keyCode = 0;
        event.cancelBubble = true;
        return false;
    }
}

2. Disable right-click pop-up menu

document.oncontextmenu = function () {
    return false;
}

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