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Xinyu (Sean) Zhang
Xinyu (Sean) Zhang
Courses Plus Student 7,064 Points

the getData takes twoParam and the firstParam is an object which has two properties. what is equal sign and {} following

In this video, the function getData takes two parameters and the first parameter is an object which has two properties. what is that equal sign and {} following the object?

1 Answer

Steven Parker
Steven Parker
229,966 Points

An equal sign in a parameter description establishes a default value for that parameter to be used if none is supplied when the method is called. And a pair of braces represent an empty object, so the entire expression means "if no parameter is given, use an empty object as the parameter".