모두에게 친숙한 15가지 jquery 팁을 공유하세요_jquery

// Back to top

$('.top').click(function (e) {

 e.preventDefault();

 $('html, body').animate({scrollTop: 0}, 800);

});

<!-- Create an anchor tag -->

<a class="top" href="#">Back to top</a>

$.preloadImages = function () {
 for (var i = 0; i < arguments.length; i++) {
 $('<img>').attr('src', arguments[i]);
 }
}; 
$.preloadImages('img/hover-on.png', 'img/hover-off.png');

$('img').load(function () {
 console.log('image load successful');
});

$('img').on('error', function () {
 if(!$(this).hasClass('broken-image')) {
 $(this).prop('src', 'img/broken.png').addClass('broken-image');
 }
});

$('.btn').hover(function () {
 $(this).addClass('hover');
}, function () {
 $(this).removeClass('hover');
});

$('.btn').hover(function () {
 $(this).toggleClass('hover');
});

$('a.no-link').click(function (e) {
 e.preventDefault();
});

// Fade
$('.btn').click(function () {
 $('.element').fadeToggle('slow');
});
// Toggle
$('.btn').click(function () {
 $('.element').slideToggle('slow');
});

// Close all panels
$('#accordion').find('.content').hide();
// Accordion
$('#accordion').find('.accordion-header').click(function () {
 var next = $(this).next();
 next.slideToggle('fast');
 $('.content').not(next).slideUp('fast');
 return false;
});

var $columns = $('.column');
var height = 0;
$columns.each(function () {
 if ($(this).height() > height) {
 height = $(this).height();
 }
});
$columns.height(height);

var $rows = $('.same-height-columns');
$rows.each(function () {
 $(this).find('.column').height($(this).height());
});

$('a[href^="http"]').attr('target', '_blank');
$('a[href^="//"]').attr('target', '_blank');
$('a[href^="' + window.location.origin + '"]').attr('target', '_self');

var search = $('#search').val();
$('div:not(:contains("' + search + '"))').hide();

$(document).on('visibilitychange', function (e) {
 if (e.target.visibilityState === "visible") {
 console.log('Tab is now in view!');
 } else if (e.target.visibilityState === "hidden") {
 console.log('Tab is now hidden!');
 }
});

$(document).ajaxError(function (e, xhr, settings, error) {
 console.log(error);
});

$('#elem').show();
$('#elem').html('bla');
$('#elem').otherStuff();

$('#elem')
 .show()
 .html('bla')
 .otherStuff();

var $elem = $('#elem');
$elem.hide();
$elem.html('bla');
$elem.otherStuff();