Error in reading objects from jQuery Array

Question

I am trying to create an array and add data to the beginning of it. Then with a for loop I print out all the data. However, it prints an error, as Uncaught TypeError: Cannot read property 'title' of undefined.

var coords=new Array();

coords.unshift({tite:"sadsad asdds",artist:"Tik Taak"});
coords.unshift({title:"Heyyy sd",artist:"shahram"});
coords.unshift({title:"brahhh",artist:"Daniel"});


for(var i = 0; i <= coords.length; i++){
	console.log(coords[i].title + " - " + coords[i].artist);
};

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

As you can see one of the items is printed as undefined. And I think thats the point the error is triggered.

Any idea how to solve it?

Thanks in advance

kind user · Accepted Answer · 2017-05-12 22:16:08Z

4

Omitting the fact, that you had a typo in your first object (title != tite) - change <= to < inside the for loop, else it will return undefined error, because it looks for the element on index 3, which actually doesn't exist.

var coords = new Array();

coords.unshift({title:"sadsad asdds",artist:"Tik Taak"});
coords.unshift({title:"Heyyy sd",artist:"shahram"});
coords.unshift({title:"brahhh",artist:"Daniel"});

for (var i = 0; i < coords.length; i++) {
  console.log(coords[i].title + " - " + coords[i].artist);
};

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

answered May 12, 2017 at 22:16

kind user

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Comments

Woodrow · Accepted Answer · 2017-05-12 22:13:25Z

4

Looks like your first array object, title is misspelled.

answered May 12, 2017 at 22:13

Woodrow

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1 Comment

Lixus Over a year ago

Also the for has to be i < coords.lengthotherwise it will go to index 3 and cause yet another error.

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