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JavaScript Asynchronous Programming with JavaScript Asynchronous JavaScript with Callbacks Introducing the Project

Sam Brown
Sam Brown
9,796 Points
Posted by Sam Brown
Sam Brown
9,796 Points

Uncaught TypeError: Cannot read property 'source' of undefined

I found that some of the wiki data returned was for 'disambiguation' pages, e.g. the name refers to multiple pages, so the generateHTML function was failing with the above error.

There will be a better solution but to complete the exercise I skipped these astronauts with a conditional (person.type != 'disambiguation').

// Generate the markup for each profile function generateHTML(data) { data.map( person => { if (person.type != 'disambiguation') { const section = document.createElement('section'); peopleList.appendChild(section); section.innerHTML = <img src=${person.thumbnail.source}> <span>${person.craft}</span> <h2>${person.title}</h2> <p>${person.description}</p> <p>${person.extract}</p> ; } }) }