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Accessing Object Properties with Variables
Can JavaScript objects incorporate variables as property names, such as:
<code class="javascript">var myVar = "name"; var myObject = { {myVar}: "value" };</code>
Solution: Computed Property Names
In ES6:
ES6 introduces computed property names, allowing the usage of expressions as property names:
<code class="javascript">var myVar = "name"; var myObject = { [myVar]: "value" };</code>
In Pre-ES6:
Though not supported in object literals, you can dynamically assign properties with the [] syntax:
<code class="javascript">var myObject = {}; var myVar = "name"; myObject[myVar] = "value";</code>
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