JavaScript执行直到按下键

问题描述

我想执行一个循环/动作，直到按下一个键并且onpress我想停止该动作并调用函数 getKey 。有人可以建议怎么做吗？

I want to execute a loop/action until a key is pressed and onpress I want to stop that action and call the function getKey. Can anybody suggest how to do this?

function getKey(e) 
{
    var pressedKey;
    if (document.all)   { e = window.event; }
    if (document.layers || e.which) { pressedKey = e.which; }
    pressedCharacter = String.fromCharCode(pressedKey).toLowerCase();
    move(pressedCharacter);

}

document.onkeypress = getKey;

我希望move（）函数连续执行，直到没有按下某个键。如果它被按下我想用新按下的字符重新执行move（）函数

I want the move() function to be executing continuously till a key is not pressed . if it's pressed i want to re-execute the move() function with the new pressed character

推荐答案

取决于你如何循环。最简单的方法是使用区间：

Depends on how you loop. The easiest way is with an interval:

var interval = window.setInterval(function () {
    // do your thing, do your thing
}, 1000);

document.onkeypress = function () {
    if (/* some specific character was pressed */) {
        window.clearInterval(interval);

        // do some other thing, other thing
    }
};

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