你所拥有的应该已经工作了。
在 jQuery 中,除非元素的 style 属性display
最初设置为 以外的其他值none
,否则当show
调用 时,它所做的只是删除 style 属性以进行显示。它不会将其设置为阻塞。
您可以在这个小提琴中亲自看到,当单击按钮时,display
CSS 中设置的就是元素设置的内容。
这是jQuery 源代码中的相关代码:
function showHide( elements, show ) {
var display, elem, hidden,
values = [],
index = 0,
length = elements.length;
for ( ; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
values[ index ] = data_priv.get( elem, "olddisplay" );
display = elem.style.display;
if ( show ) {
// Reset the inline display of this element to learn if it is
// being hidden by cascaded rules or not
if ( !values[ index ] && display === "none" ) {
elem.style.display = "";
}
// Set elements which have been overridden with display: none
// in a stylesheet to whatever the default browser style is
// for such an element
if ( elem.style.display === "" && isHidden( elem ) ) {
values[ index ] = data_priv.access( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
}
} else {
if ( !values[ index ] ) {
hidden = isHidden( elem );
if ( display && display !== "none" || !hidden ) {
data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css(elem, "display") );
}
}
}
}
// Set the display of most of the elements in a second loop
// to avoid the constant reflow
for ( index = 0; index < length; index++ ) {
elem = elements[ index ];
if ( !elem.style ) {
continue;
}
if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
elem.style.display = show ? values[ index ] || "" : "none";
}
}
return elements;
}
我应该注意,切换类通常会更快,因为要检查的信息更少。