93. Module Introduction

Jul 15, 2026 01:01 · 1:23 · English · Whisper Turbo · 2 स्पीकर
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S… Speaker 1 (93. Module Introduction)
Time to take another look at directives and not only repeat quickly
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S… Speaker 1 (93. Module Introduction)
what we learned thus far,
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but also learn how to build our own directives and really
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dive into the difference between attribute and structural directives and what this star
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means on the structural directives.
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S… Speaker 2 (93. Module Introduction)
Well,
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I already said it,
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right? We got attribute and structural directives.
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Attribute directives are called like this because they sit
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on elements just like attributes and structural directives
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basically do the same,
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but they also change the structure of the DOM around this element.
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If you have ngf on a paragraph,
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if that condition is false,
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this paragraph is removed from the DOM,
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so the overall view container is affected.
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Whereas on the attribute directive,
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you never destroy an element from the DOM,
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you only change properties of that element,
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for example,
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the background color.
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S… Speaker 1 (93. Module Introduction)
So that is why we have attribute directives only affecting the
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element they sit on and structural directives,
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which also affect the whole DOM or the view container,
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S… Speaker 1 (93. Module Introduction)
the area around the element which they were placed on.
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S… Speaker 1 (93. Module Introduction)
That is the difference.
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Now with that,
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let's briefly have a look at the directives we already know and how
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to use them before we then dive into building our own ones and learn more about structural
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directives.

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