The Front-End Web Developer Bootcamp - HTML, CSS, JS, and React - Filter Method

The video tutorial covers various JavaScript methods including sum, every, find, and find index. It explains how these methods work with true or false values. The focus then shifts to the filter method, demonstrating how it displays all true values. The tutorial also discusses the impact of changing conditions and the necessity of using variables in certain scenarios. The video concludes with a summary of how to use the filter method effectively.

Which method can be used to find the index of a true value in an array?

• sum

• every

• find

• find index

What does the filter method do with true values in an array?

• It displays all of them.

• It sums them up.

• It finds the first one.

• It shows their indices.

If a condition is changed in the filter method and no values meet the condition, what will be displayed?

• All values

• Only true values

• An error message

• No values

What might be necessary when using the every method if the condition does not return true?

• Creating another variable

• Using a different method

• Ignoring the result

• Changing the array

Which method would you use to check if all elements in an array meet a certain condition?

• sum

• find

• filter

• every