Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
1.2k views
in Technique[技术] by (71.8m points)

html - jQuery width() incorrect immediately after document ready?

For some reason $("...").width() is returning the wrong value immediately after document ready.

I'm see these values:

Immediately after document ready:

$(document).ready(function(){
  $("li.active a").width() //returns 76 - incorrect
});

$(document).ready(function(){
  $(window).load(function(){
    $("li.active a").width() //returns 59 - the correct value
  });
});

$(document).ready(function(){
  setTimeout(function(){
    $("li.active a").width() //returns 59 - the correct value
  }, 100);
});

I'm getting the width of wordpress menu items and resizing them so that they always fit in my responsive design. There are no images or assets that should cause this change.

Update See my comment below. Turns out there was an asset, an embedded font, that took a split second to load.

See Question&Answers more detail:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Reply

0 votes
by (71.8m points)

It could be to do with the lack of $(window).load in the first example.

"The document ready event executes already when the HTML-Document is loaded and the DOM is ready, even if all the graphics haven’t loaded yet. If you want to hook up your events for certain elements before the window loads, then $(document).ready is the right place." *

$(document).ready(function() {
 // executes when HTML-Document is loaded and DOM is ready
 alert("document is ready");
});

"The window load event executes a bit later when the complete page is fully loaded, including all frames, objects and images. Therefore functions which concern images or other page contents should be placed in the load event for the window or the content tag itself." *

$(window).load(function() {
 // executes when complete page is fully loaded (all frames, objects and images)
 alert("window is loaded");
});

*Quotes sourced from 4loc.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
OGeek|极客中国-欢迎来到极客的世界,一个免费开放的程序员编程交流平台!开放,进步,分享!让技术改变生活,让极客改变未来! Welcome to OGeek Q&A Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...