What you should work already.
In jQuery, if the display element's style attribute is not initially set to anything other than none when show is called, all it does is remove the style attribute for display. It does not block the block.
You can verify in this script that when you click the display , the set in CSS is what the element is set to.
Here is the corresponding code in the jQuery source :
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; }
I should note that class switching will usually be faster at all, because there is less information to check.
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