HTML5 and Javascript to play videos only when visible
Using the isInViewport plugin and jQuery, here’s my code for the task $(‘video’).each(function(){ if ($(this).is(“:in-viewport”)) { $(this)[0].play(); } else { $(this)[0].pause(); } })
javascript
How do I ensure saved click coordinates can be reload to the same place, even if the page layout changed?
Yeah, there are many, many ways a page’s layout can alter between loads. Different window sizes, different font sizes, different font availability, different browser/settings (even a small change in layout or font preference can throw out the wrapping). Storing page-relative co-ordinates is unlikely to be that useful unless your page is almost entirely fixed-size images. … Read more
How to find what is causing a preventDefault which overrides normal click behavior
You should be able to override Event.prototype.preventDefault and add a debugger statement as its first line. Run the following via the console. var oldEPD = Event.prototype.preventDefault; Event.prototype.preventDefault = function() { debugger; oldEPD.call(this); };
Angular JS does not allow preventDefault or return false to work on form submission
I know I am pretty late to the party, but in case you did not figure it out yet, you can keep the action and make sure the form is not actually submitted by passing $event to the ng-submit function. Then you can use event.preventDefault(); in your controller after you do all your processing. So … Read more
Random number between -10 and 10 in JavaScript [duplicate]
var min = -10; var max = 10; // and the formula is: var random = Math.floor(Math.random() * (max – min + 1)) + min;
Remove HTML tags from a javascript string
Why not just let jQuery do it? var content = “<p>Dear sms,</p><p>This is a test notification for push message from center II.</p>”; var text = $(content).text();
How to remove the white space at the start of the string
This is what you want: function ltrim(str) { if(!str) return str; return str.replace(/^\s+/g, ”); } Also for ordinary trim in IE8+: function trimStr(str) { if(!str) return str; return str.replace(/^\s+|\s+$/g, ”); } And for trimming the right side: function rtrim(str) { if(!str) return str; return str.replace(/\s+$/g, ”); } Or as polyfill: // for IE8 if (!String.prototype.trim) … Read more
copy paste big dictionary into chrome console
2018 update: Confirmed on Version 65.0.3325.181, you can simply right-click anywhere inside the devtools console and click “Clear console history.” It solved the problem for me. I ran into this issue earlier and, having never seen it before, began going through the first couple steps to TarranJones’ solution.
taking off the http or https off a javascript string
Try with this: var url = “https://site.com”; var urlNoProtocol = url.replace(/^https?\:\/\//i, “”);