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JavaScript Object-Oriented JavaScript (2015) Introduction to Methods Modifying Objects with Methods

Posted by melissakeith
melissakeith
3,766 Points

Javascript Loops, Arrays and Objects whey is the object format in that course different from this one?

Why did we use this format for objects in that course;

var person = { 
  name: 'Meissa',
  country: 'US',
  age: '32',
  treehouseStudent: true,
  skills: ['JavaScript', 'Java', 'HTML']
};

but in this course we do not add the semicolon at the end of the object, like this

var calculator = {
        sum: 0,
        add: function(value) {
      this.sum += value;
    },
    clear: function() {
      this.sum = 0;
    }, 
    equals: function() {
      return this.sum;
    }
} //no semicolon here, how come?

They made a big deal about it in the intro to object literals but when making these objects we left off the semicolon?

2 Answers

Michael Hulet
Michael Hulet
47,912 Points
Michael Hulet
Michael Hulet
47,912 Points

JavaScript is a very forgiving language, and won't complain about a lot of things, including leaving semicolons off. While your code won't crash and will run normally without semicolons, the lack of them where they're supposed to be (such as in your example) is technically a syntax error, so you should still use them

melissakeith
melissakeith
3,766 Points
melissakeith
melissakeith
3,766 Points

Ok thanks, makes sense.