jquery

问题 I want to convert my date time values to Unix timestamp format (basically an epoch timestamp). For that I use: let startDate = '2018-09-28 11:20:55'; let endDate = '2018-10-28 11:20:55'; let test1 = startDate.unix(); let test2 = endDate.unix(); However it gives me an error ERROR TypeError: Cannot read property 'Unix' of undefined Can anyone tell me how I can convert datetime to Unix using MomentJS? 回答1: The issue is because you're calling unix() on plain strings. You need to instead call it

问题 This question already has answers here : Twitter Bootstrap and jQuery Validation Plugin - use class=“control-group error” (2 answers) Closed 4 years ago . I am working with the jQuery Validate plugin and I am trying to use the errorPlacement and success callbacks to add and remove the bootstrap class has-error . Currently, the errorPlacement callback works but since the success callback returns the error label (which I'm not using) I'm not sure what to do. I need access to my input again in

问题 I have a question. Let's say we have the following html tag: <div id='foo'>I am a div</div> Τhis div exists on the dom(it is not generated by javascript) If I want to use this div in javascript many times which is the better way to do it? store it in a variable like this: var d = $("#foo") or call it every time with jquery?: $("#foo").methodName() Which method does involve less dom traversal? 回答1: The fastest way is: document.getElementById("foo"); Setting this to a variable for reuse will

问题 We have some links we want to hide from Google, using Javascript to "hide" the link but let it work for the real clients. I was told from the SEO agency that the best method is to base64 encode the link and call it via javascript: <a data-href="RdcDovL1N0YWdpbmc...base64...hhcmRpbmctaGVycmVuLWhlbaQtMTgyMDg3" href="#">Link</a> <script> <!-- var _dlist = document.getElementsByTagName('A'); for(i=0;i<_dlist.length;i++) { var _data = _dlist[i].getAttribute( 'data-href' ); if( _data !== 'null' ) {

问题 We have some links we want to hide from Google, using Javascript to "hide" the link but let it work for the real clients. I was told from the SEO agency that the best method is to base64 encode the link and call it via javascript: <a data-href="RdcDovL1N0YWdpbmc...base64...hhcmRpbmctaGVycmVuLWhlbaQtMTgyMDg3" href="#">Link</a> <script> <!-- var _dlist = document.getElementsByTagName('A'); for(i=0;i<_dlist.length;i++) { var _data = _dlist[i].getAttribute( 'data-href' ); if( _data !== 'null' ) {

问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 4 years ago . Improve this question What are the disadvantages to nesting a function within a nested function within a nested function... Here's an example: JS/jQuery: function one() { // do something function two() { // do something function three() { // do something function four() { //

问题 I’m trying to find a way to replace disallowed characters from being entered or pasted into all input fields (textboxes and textareas essentially) in a form. Any time a user pastes text that contains one or more disallowed characters I would want the character replaced with an empty string ‘’ but have the rest of the text intact. If they type and type the character I would just want “nothing” to happen (e.g. the character not to appear if they type it). Is there a code sample that exists on

问题 I am trying to disable mousewheel on mousewheel event and only enable it after the action is completed. $(window).on('DOMMouseScroll mousewheel', function (event) { //disable mousewhell until the following animation is complete $('.box').animate({ margin: div_offset+'px 0 0 0' }, 500); //enable mousewhell return false; }); I would also like the code to ignore every scroll after the first one, until the animation is complete. In this particular case, I want the animation to complete only once,

问题 I am having trouble passing around values without using global variables when I am creating html/jquery applications. Quick example 1) Load a table with a class such as "playersTable" 2) Attach a unique ID such as "25" 3) Click on the table row and spawn a row of buttons that will perform actions based on the parent's class and ID; such as query playersTable WHERE row = 25, etc. The issue is that, as I am developing, I need to tie more and more values to the parent element (or any element

问题 I am working on a game in which I want background music playing. I was wondering if there was a way to hide the progress bar of the music and only display the play and stop button with the volume slider? Right now I have resized the width so that the play button will only show, but when I change it to a bigger width to have the slider show, the progressbar comes back out. I want to get rid of the progress bar completely. 回答1: Unfortunately, there is no way to pick and choose which controls