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How to set caret(cursor) position in contenteditable element (div)?
...haracter of the second line of text, you'd do the following:
function setCaret() {
var el = document.getElementById("editable")
var range = document.createRange()
var sel = window.getSelection()
range.setStart(el.childNodes[2], 5)
range.collapse(true)
sel.remove...
Python - Passing a function into another function
...objects in python. you can pass them around, include them in dicts, lists, etc. Just don't include the parenthesis after the function name. Example, for a function named myfunction: myfunction means the function itself, myfunction() means to call the function and get its return value instead.
...
RequestDispatcher.forward() vs HttpServletResponse.sendRedirect()
...rocessing stuff in there (e.g. validation, business logic, login the user, etc).
If there are any errors, then you normally want to forward the request back to the same page and display the errors there next to the input fields and so on. You can use the RequestDispatcher for this.
If a POST is succ...
targetContentOffsetForProposedContentOffset:withScrollingVelocity without subclassing UICollectionVi
...subclass.
Because you're doing it this way you can't specify items sizes, etc... in IB so in MyCollectionViewFlowLayout.m I have this...
- (void)awakeFromNib
{
self.itemSize = CGSizeMake(75.0, 75.0);
self.minimumInteritemSpacing = 10.0;
self.minimumLineSpacing = 10.0;
self.scrollDi...
JavaScript: client-side vs. server-side validation
...at re-submitted the user's search to many partner airlines, bus companies, etc, by sending POST requests as if the user had filled each company's search form, then gathered and sorted all the results. Those companies' form JS was never executed, and it was crucial for us that they provide error mess...
Listing and deleting Git commits that are under no branch (dangling?)
...project, reflogs record the history of these branches. If you amend, reset etc. commits are removed from the branch history but git keeps them around in case you realize that you made a mistake. Reflogs are a convenient way to find out what destructive (and other) operations were performed on a bran...
How to jQuery clone() and change id?
... need to clone the id and then add a number after it like so id1 , id2 , etc. Everytime you hit clone you put the clone after the latest number of the id.
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When do items in HTML5 local storage expire?
...the only real difference between the regular storage methods. Get, remove, etc work the same.
If you don't need that much functionality, you can simply store a time stamp with the value (via JSON) and check it for expiry.
Noteworthy, there's a good reason why local storage is left up to the user....
Measuring the distance between two coordinates in PHP
... Just put a comment on previous line and say // M_PI / 180 ... etc. I don't know why it would make it difficult to maintain. It is not something you will ever change.
– Evren Yurtesen
Dec 5 '17 at 16:56
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In Maven 2, how do I know from which dependency comes a transitive dependency?
...re is a graphical version of dependency tree where you can filter by scope etc.
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