Info

Will objects instantiate faster if all properties are prototyped, even if the constructor must overwrite all properties?

Preparation code

function NormalThing( name ) {
this.name = name;
}

function ProtoThing1( name ) {
this.name = name;
}
ProtoThing.prototype.name = undefined;

function ProtoThing2( name ) {
this.name = name;
}
ProtoThing.prototype.name = "string"

 

Preparation code output

Test runner

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var p = new NormalThing( 'Craig' );

var p = new ProtoThing1( 'Craig' );

var p = new ProtoThing2( 'Craig' );

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