How javascript converts set to an array

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Javascript will set into an array method: 1, the use of the extension operator "...", syntax "array = [... setObject];"; 2, the use of "Array.from ()" method, syntax "Array.from (setObject)".

The operating environment of this tutorial: windows7 system, javascript1.8.5 version, Dell G3 computer.

Javascript's method of converting set (collection) to an array:

Method 1: use the extension operator "."

Syntax: var variablename = [... value]

Example:

Const set = new Set (['hello',' world','!']); console.log (set); const array = [... set]; console.log (array)

Method 2: use the Array.from () method

The Array.from () method returns a new array from an object or an iterable object, such as Map,Set, and so on.

Syntax: Array.from (arrayLike object)

Example:

Const set = new Set (['welcome',' youthful Magna Magazine']); console.log (set); console.log (Array.from (set))

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