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Addy Osmani
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Preview: ES6 `let` in Chrome. `let` declares block-scoped variables vs. `var` which is hoisted to function scope
DevTools now highlights DOM updates. Visualise what parts of a node have changed with ease:
Sneak peek of ES6 `const` declarations in Chrome - used to create read-only named constants. Also in FF 35 & IE11.
Two years ago @24PullRequests got me into OSS. It's starting again in less than a week!
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Check if a string contains another with String.prototype.includes in Chrome and WebKit Nightlies. FF has .contains().
Advanced debugging with Chrome DevTools -… - Part 2 of a Modern Debugging Experience is out.
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DevTools: Framework Blackboxing skips JavaScript library code (e.g jQuery) when debugging…
Coming soon: DevTools Paint Profiler. Scrub through what the browser painted and what painted it with ease.
Coming soon: DevTools Timeline won't just show you what was painted, it will show you why
Next major version of Polymer: 5 x faster in Chrome, 8 x faster in Safari. Up to 87% smaller (15KB, 6KB gzipped)
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The Speedometer benchmark, built using TodoMVC apps, measures Web application responsiveness. We're now 2x faster:
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Try Flow - Facebook's new static type checker for JavaScript: with vanilla JS & React demos
Lazy evaluation (in Lo-Dash 3.0.0-pre) is sweet:… Fewer cycles, deferred execution & pipelining
Functions in framework stack traces should have useful names… on fn.displayName by @cramforce
Element.closest() API is coming to Chrome! Returns closest ancestor of current element matching selector. Sneak peek:
Google search now (finally) does timezone math. :D
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The Tale Of 3 Spinners:… ~ creating a GPU-accelerated <paper-spinner> element with @polymer
The web gets a sweet spot in Android Lollipop. Control how your site appears with theme-color…
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Tab Audio muting lands in Chrome. Toggle sound from any tab ~ chrome:flags ➔ "Enable tab audio muting UI control"
TMI (Too Many Images) is a new tool to discover your image weight on the web: #perfmatters
The average web page now contains ~1.2MB of images. That's almost ~200KB more than they did at the start of 2014.
New Sublime Text theme: Seti UI… ~ beautiful colours & icons, ported from the Atom theme.
Author in ES6 from DevTools with the refreshed ES6 Repl extension:… ~ powered by Traceur