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Coding and Engineering Concepts

Symbol

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Creates hidden object properties with unique keys.
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Array Destructuring

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[a,b] = [10,20] assigns first two items.
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Iterator

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Lets you loop through items manually using .next().
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Default Values

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You can set fallback values when destructuring.
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Generator

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Functions that pause and resume using yield.
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Shorthand Properties

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{x,y} instead of {x:x,y:y} when variable names match.
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Spread Syntax in Objects

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Combines multiple objects: {…obj1, …obj2}.
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Template Strings

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Use backticks and ${} to insert values easily.
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ES6 Modules

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Keep large projects tidy by separating files into modules.
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