code is as follows:
$(".password").on("keydown", function(e) {
if (e.keyCode === 13 && !e.ctrlKey) {
e.preventDefault();
$(".loading-btn").click(denlu());
}
})
$(".loading-btn").click(function(){denlu()});if $(".loading-btn") .click (function () {denlu ()}); written as $(".loading-btn") .click (denlu ()); page refresh will be performed directly, but not in $(".password"). On ("keydown", function (e) {}). Why? Please advise Thanks ()
first understand the jQuery event method: the
event method triggers an event that matches an element, or binds a function to an event of all matching elements.
combine your code
trigger:
$('.loading-btn').click(denlu());bind function:
$(".loading-btn").click(function(){denlu()}); if it is triggered and is not placed in the callback (function) of an operation, it will be triggered when the current line of code is read, so
$('.loading-btn') .click (denlu ()); will immediately trigger $('. Loading-btn'). Click,
so denlu () in click () will also be executed as a function expression statement.
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