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Tutor profile: Kae U.

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Kae U.
Web Developer and Tutor for eight years
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Questions

Subject: Javascript Programming

TutorMe
Question:

Is a string an object in Javascript?

Inactive
Kae U.
Answer:

A string is a simple primitive rather than an object (unless declared with "new String"). However, you can access properties (like length) and methods (like indexOf) directly on a string because Javascript automatically converts string primitives into String objects when you try to access those properties/methods.

Subject: HTML5 Programming

TutorMe
Question:

When should you use the <section> tag, vs. <div> ?

Inactive
Kae U.
Answer:

<section> tags are used to group content that is thematically related (eg you might group a bio and a contact form into different sections). <div>s have no semantic significance and are used mainly for styling.

Subject: CSS

TutorMe
Question:

What does the "fr" unit refer to in flexbox and grid?

Inactive
Kae U.
Answer:

The fr (or "fractional") unit is used to divide the available space between columns/rows. For example, a grid with two columns declared "1fr 1fr" will have two columns of equal width, while a grid with two columns declared "2fr 1fr" will have 1 column that takes up 2/3 of the available space, and another column that takes up 1/3.

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