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let

Back

Declares a block-scoped local variable, optionally initializing it to a value

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const

Back

Declares a read-only named constant

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string

Back

A sequence of characters used to represent text

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number

Back

A numeric data type

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boolean

Back

A logical data type that can have only the values true or false

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array

Back

A high-level, list-like object

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object

Back

A collection of key-value pairs

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function

Back

A block of code designed to perform a particular task

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if...else

Back

A conditional statement that executes a block of code if a specified condition is true

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for loop

Back

A statement that creates a loop

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===

Back

Strict equality operator (compares value and type)

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() => {}

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Arrow function syntax