The iOS Design Cheat Sheet V2

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The iOS Design Cheat Sheet V2 by Ivo Mynttinen is an excellent reference tool if you are an iOS developer. Ivo has organized display sizes and resolutions, as well as some other hardware data, for each device into nice, easy to follow data tables.

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Format MAC Address [JavaScript]

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I am currently working on a project which will allow users to register their Wi-Fi enabled, non-web browser enabled, devices on the network. These are devices like printers, Apple TV, and Xbox*. One of the data points that have to be collected from the user is the device MAC address. The project customer wants that address to be properly formatted when they see it in the support ticket.

We have several options. We can format the address either on the back-end after the form has been submitted. Or we can format it on the front end via a separate text field for each character pair, but that is too many fields to handle. A better solution is to use a single field and format the user input at the time of input or upon submit. In those cases, the former is better because the data will already be formatted when the overall form input is being validation after the user clicks the “Submit” button.

We are going to format the user input as it is being provided, thus having proper data when vali…
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Messing with WordPress SPAM Bots

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If you have a WordPress based blog, or otherwise use WordPress as a CMS for your website, you are either getting a lot of bad user accounts being created or noticing a lot of knocking on your wp-login.php page. WordPress has a nice feature which allows you to install WordPress in a directory other than the root one. For example, your site is served from http://blog.example.com, but WordPress can be installed in http://blog.example.com/wpcms. In past versions of WordPress, prior to 3.8 or maybe be older than that, unless you knew the exact path to where WordPress was installed you could not get to the dashboard. That has changed! Now even if WordPress is installed in some random directory, if you navigate to http://blog.example.com/wp-login.php you will be redirected to the actual WordPress login page. Convenient, but not helpful when dealing with SPAM bots.
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Format a number as US currency [JavaScript]

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A recent project I worked on allowed customers to request cloud computing resources. One of the requirements was to display the cost for each resource amount and the totals for one and two years for the resources the customer was requesting. In the United States, numbers are formatted with a period for the decimal mark and a comma as the thousands separator, e.g. 1,234,567.89.
The function below is going to: Assume that the input is either an unsigned integer or a float, ex. 1234567 or 1234567.90.Insert a "," delimiter every third digit.Optionally, add a currency symbol to the returned string. https://gist.github.com/thetitan/328a68da79f97d1ee27c5509cc91bf56#file-formatcostnumber-js Let’s review: On lines 2 - 4 I defined some default values.On line 6 I defined a closure called formatNumber. The logic in the closure is going to format the number string.Starting at line 28 I am making sure that when the formatCostNumber function is called it does receive a value to format, and that…
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