What are the default and rest parameters of JavaScript ES6
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Default parameter
When creating functions with parameters that should have default values, we all use the following mode:
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Function getarea (WBH) {
Var w = w | | 10
Var h = h | | 15
Return w * h
}
With ES6 support for default parameters, the test date for explicitly defined parameter values ends:
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Function getarea (winter10, hong15) {
Return w * h
}
Getarea (5) / / returns 75
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