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Change Active Menu Item on Page Scroll?

... scroll event of the container (usually window). Quick example: // Cache selectors var topMenu = $("#top-menu"), topMenuHeight = topMenu.outerHeight()+15, // All list items menuItems = topMenu.find("a"), // Anchors corresponding to menu items scrollItems = menuItems.map(functio...
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Use of undeclared identifier 'kUTTypeMovie'

... Add MobileCoreServices.framework if not added already. Select your target and add linked binaries with library. Add #import <MobileCoreServices/MobileCoreServices.h> share | ...
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How to get an element by its href in jquery?

... Yes, you can use jQuery's attribute selector for that. var linksToGoogle = $('a[href="http://google.com"]'); Alternatively, if your interest is rather links starting with a certain URL, use the attribute-starts-with selector: var allLinksToGoogle = $('a[hre...
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Heroku 'Permission denied (publickey) fatal: Could not read from remote repository' woes

...rect path to .ssh/somegoodname_rsa) Add the key to Heroku heroku keys:add Select a created key from a list Go to your app directory, write some beautiful code Init a git repo git init git add . git commit -m 'chore(release): v0.0.1 Create Heroku application heroku create Deploy your app git push he...
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How to disable Google Chrome auto update?

...c OS. Go to Applications Folder in Finder. Right click Google Chrome and select Show Package Contents. Go to Contents directory. Open Info.plist file with XCode or other text editor. Change the value of the key: KSUpdateURL to an invalid URL. something like https://tools.google.com/service/inva...
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Getting number of days in a month

... I made it calculate days in month from datetimepicker selected month and year , and I but the code in datetimepicker1 textchanged to return the result in a textbox with this code private void DateTimePicker1_ValueChanged(object sender, EventArgs e) { int s = System.DateTime...
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In a Django form, how do I make a field readonly (or disabled) so that it cannot be edited?

... work for a ForeignKey field, a few changes need to be made. Firstly, the SELECT HTML tag does not have the readonly attribute. We need to use disabled="disabled" instead. However, then the browser doesn't send any form data back for that field. So we need to set that field to not be required so...
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Find kth smallest element in a binary search tree in Optimum way

... tree, your algorithm will take O(n) time to finish, which is bad for the selected answer-O(log n) – Spark8006 Jul 2 '15 at 14:58 add a comment  |  ...
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Unable to Cast from Parent Class to Child Class

... I think the examples are a bit extreme and selective and perhaps the cast is a shortcut for a copy constructor. For example, being building a ferrari with the properties defined in base object car. Or, start with a human and create a Boy. Casting and direct use? A...
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How to get execution time in rails console?

I want compare time of execution Post.all and SELECT * FROM posts (or some other statements) How can i get execution time of Post.all ? ...