Since the question refers to a single element, this code might be more suitable: // Checks CSS content for display:[none|block], ignores visibility:[true|false] $(element).is(“:visible”); // The same works with hidden $(element).is(“:hidden”); It is the same as twernt’s suggestion, but applied to a single element; and it matches the algorithm recommended in the jQuery FAQ. We use … Read more
It’s a holdover from the Netscape days: Missing digits are treated as 0[…]. An incorrect digit is simply interpreted as 0. For example the values #F0F0F0, F0F0F0, F0F0F, #FxFxFx and FxFxFx are all the same. It is from the blog post A little rant about Microsoft Internet Explorer’s color parsing which covers it in great … Read more
[*] ⚠ Warning: Any uncommitted local changes to tracked files will be lost. Any local files that are not tracked by Git will not be affected. First, update all origin/<branch> refs to latest: git fetch –all Backup your current branch (e.g. master): git branch backup-master Jump to the latest commit on origin/master and checkout those … Read more
No. JSON is data-only. If you include a comment, then it must be data too. You could have a designated data element called “_comment” (or something) that should be ignored by apps that use the JSON data. You would probably be better having the comment in the processes that generates/receives the JSON, as they are … Read more
The stack is the memory set aside as scratch space for a thread of execution. When a function is called, a block is reserved on the top of the stack for local variables and some bookkeeping data. When that function returns, the block becomes unused and can be used the next time a function is … Read more
–> is not an operator. It is in fact two separate operators, — and >. The conditional’s code decrements x, while returning x‘s original (not decremented) value, and then compares the original value with 0 using the > operator. To better understand, the statement could be written as follows: while( (x–) > 0 )
Undo git add for uncommitted changes with: git reset <file> That will remove the file from the current index (the “about to be committed” list) without changing anything else. To unstage all changes for all files: git reset In old versions of Git, the above commands are equivalent to git reset HEAD <file> and git … Read more
To rename a branch while pointed to any branch: git branch -m <oldname> <newname> To rename the current branch: git branch -m <newname> -m is short for –move. To push the local branch and reset the upstream branch: git push origin -u <newname> To delete the remote branch: git push origin –delete <oldname> To create … Read more
Find the index of the array element you want to remove using indexOf, and then remove that index with splice. The splice() method changes the contents of an array by removing existing elements and/or adding new elements. const array = [2, 5, 9]; console.log(array); const index = array.indexOf(5); if (index > -1) { // only … Read more
For JSON text: application/json The MIME media type for JSON text is application/json. The default encoding is UTF-8. (Source: RFC 4627) For JSONP (runnable JavaScript) with callback: application/javascript Here are some blog posts that were mentioned in the relevant comments: Why you shouldn’t use text/html for JSON Internet Explorer sometimes has issues with application/json A rather … Read more