javascript 禁用某些键的默认操作

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时间:2020-10-25 15:34:28  来源:igfitidea点击:

Disable certain key's default action

javascripteventskeyboard

提问by ptigers9

function keypressCheck() {
    var keyID = event.keyCode;

    //space pressed
    if (keyID == 32) {
        anotherFunction();
    }
}

I want anotherFunction()to run when the space bar is pressed without the default action of the page scrolling to happen. is there any way to do this?

我想anotherFunction()在按下空格键时运行而不发生页面滚动的默认操作。有没有办法做到这一点?

回答by JCOC611

It should work. Just to make sure, try this:

它应该工作。只是为了确保,试试这个:

function keypressCheck(e) { 
    var e = window.event||e; // Handle browser compatibility
    var keyID = e.keyCode;
    //space pressed
    if (keyID == 32) {
        e.preventDefault(); // Prevent the default action
        anotherFunction();
    }
}