JavaScript Rest Parameters or Operators

Rest parameters in JavaScript allow functions to accept an indefinite number of arguments as an array.

javascript-rest-parameters-or-operators-in-details

ES6 Rest Parameter Or Rest Operator.

JS Rest Parameter:

Rest parameter is a feature introduced in ES6 that allows functions to accept an indefinite number of arguments as an array. It is denoted by three dots (...) followed by a parameter name.

Note:

The rest parameter has to be the last argument, as its job is to collect all the remaining arguments into an array.

Some Key points!!!!

Variable Arguments:

The rest parameter allows a function to accept an arbitrary number of arguments as an array.

Empty Rest Parameter:

If no arguments are passed to the function, the rest parameter will be an empty array. No Limitation on the Number of Arguments.

Optional Usage:

The rest parameter can be used alongside other named parameters, but it should be the last parameter in the function's parameter list.

Array-Like Object :

When the function is called, the rest parameter collects all the remaining arguments into an array-like object called the "arguments" object.

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