javascript - 用按钮切换显示/隐藏div？

Question

希望这是一个简单的问题。我有一个 div，我想用按钮切换隐藏/显示

<div id="newpost">

Answer 1

纯 JavaScript:

var button = document.getElementById('button'); // Assumes element with id='button'

button.onclick = function() {
    var div = document.getElementById('newpost');
    if (div.style.display !== 'none') {
        div.style.display = 'none';
    }
    else {
        div.style.display = 'block';
    }
};

SEE DEMO

jQuery:

$("#button").click(function() { 
    // assumes element with id='button'
    $("#newpost").toggle();
});

SEE DEMO