Couverture de This Is Crazy, But Here's A Podcast, So Callbacks, Maybe?

This Is Crazy, But Here's A Podcast, So Callbacks, Maybe?

This Is Crazy, But Here's A Podcast, So Callbacks, Maybe?

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Today we discuss JavaScript Callbacks! What is a Callback?

A callback function is a function passed into another function as an argument, which is then invoked inside the outer function to complete some kind of routine or action.

For example, paste this code block in your editor and try it!

function greeting(name) { alert('Hello ' + name);}function processUserInput(callback) { var name = prompt('Please enter your name.'); callback(name);}processUserInput(greeting);



Resources

  • MDN Callback Function Definition


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