JavaScript DevOPS - Automating everything JS

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JavaScript DevOPS Automating everything JS @mananbharara

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JavaScript DevOPS Automating everything JS @mananbharara

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“Front-end operations engineers are the enablers of long-term progress” - smashingmagazine.com

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Why? Front end Back end

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Why? 40% will leave your site after 3 seconds Loading…

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Why?

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Why?

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Why?

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Weapons

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• File based

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• File based • Excellent community support with thousands of plugins

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• File based • Excellent community support with thousands of plugins • Emphasis to conﬁguration over code

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• File based • Excellent community support with thousands of plugins • Emphasis to conﬁguration over code • Aliases

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• File based • Excellent community support with thousands of plugins • Emphasis to conﬁguration over code • Aliases • Variables

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• File based • Excellent community support with thousands of plugins • Emphasis to conﬁguration over code • Aliases • Variables • Can be used as a deployment tool as well

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grunt-concurrent

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grunt-bower-install

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Before

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After

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grunt-scp

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grunt-usemin

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Debugging the debuggable

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Debugging the debuggable In action

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{ version: 3, ﬁle: "script.js.map", sources: [ "app.js", "content.js", "widget.js" ], sourceRoot: "/", names: ["slideUp", "slideDown", "save"], mappings: "AAA0B,kBAAhBA,QAAOC,SACjBD,OAAOC,OAAO..." } Debugging the debuggable http://www.html5rocks.com/en/tutorials/developertools/sourcemaps/

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In memory, to other streams Stream Stream Stream

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• Stream based

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• Stream based • Extremely fast due to reduced I/O. Concurrency in-built

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• Stream based • Extremely fast due to reduced I/O. Concurrency in-built • Code over conﬁguration

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• Stream based • Extremely fast due to reduced I/O. Concurrency in-built • Code over conﬁguration • Simple In, Out, Watch API

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• Deﬁne tasks with gulp.task()

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• Deﬁne tasks with gulp.task() • Watch the ﬁle system for changes with gulp.watch()

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• Define tasks with gulp.task() • Watch the file system for changes with gulp.watch() • Open files/directories with gulp.src()

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• Define tasks with gulp.task() • Watch the file system for changes with gulp.watch() • Open files/directories with gulp.src() • Output files/directories with gulp.dest()