A rather geeky/technical weblog, est. 2001, by Bramus
(a ==1 && a== 2 && a==3) ever evaluate to true?Is it ever possible that (a ==1 && a== 2 && a==3) could evaluate to true, in JavaScript? This is interview question asked by a major tech company. My answer was that it’s impossible. They said nothing is impossible. It happened 2 weeks back, but I’m still trying to find the answer. I know we …
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The Population Estimation Service is a Web-based service for estimating population totals and related statistics within a user-defined region. It enables users of a wide variety of map clients and tools to quickly obtain estimates of the number of people residing in specific areas without having to download and analyze large amounts of spatial data. …
<dialog> Element
HTML 5.2 has introduced a new <dialog> element to show modal dialog boxes. Here’s a small demo by @bdc (forked version by me, including polyfill): Already available in Chrome; a polyfill is available for other/older browsers. Meet the New Dialog Element →Polyfill for the HTML <dialog> element → Siderant: I cannot help it, but my …
There’s a security best practice where sign ins aren’t supposed to say “password is incorrect”. Instead they’re supposed to say the “username or password is incorrect”. This “best practice” is bullshit. […] You gain no security, yet your customers lose clarity. At first I raised my eyebrow when reading this, yet it became clear rather …
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Addy Osmani: Tinder recently swiped right on the web. Their new responsive Progressive Web App — Tinder Online — is available to 100% of users on desktop and mobile, employing techniques for JavaScript performance optimization, Service Workers for network resilience and Push Notifications for chat engagement. Today we’ll walk through some of their web perf learnings. Their PWA is …
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Say you have a JavaScript object like this: const user = { firstName: ‘Bramus’, lastName: ‘Van Damme’, twitter: ‘bramus’, city: ‘Vinkt’, email: ‘[email protected]’, }; And now say you want to create a copy of the whole object, containing all properties except for the email property. # The oldskool way: The first idea that came to …
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.ipa and .mobileprovision files./freshinstallRecently I configured my new MacBook Pro. I decided to start with a clean slate and not migrate anything from my old MacBook. To configure macOS I whipped up ./freshinstall, which automates that process. Steps included are: Configure macOS Preferences and the like Generate and load SSH keys Install the essentials: XCode, Git, Homebrew Copy …
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