Web Development Layers
Gbogbo ọrọ náà
Every web page you visit is built from three separate layers that do three different jobs: one holds the content, one decides how it looks, and one makes it react. Pulling these apart is one of the most important ideas in modern web development, because it lets a designer restyle a whole site without touching a word of its text, and lets a writer change the text without breaking the design.
In this lesson you will learn the purpose of each layer: the content layer written in HTML, the presentation layer written in CSS, and the behaviour layer written in a scripting language such as JavaScript. You will see why keeping them in separate files matters and how the three fit together to make a single page. This is the foundation that the rest of website authoring is built on.
Ebumnobi
- The three web development layers.
- Content layer is used to enter the content and create the structure of a web page Presentation layer is used to display and format elements within a web page Behaviour layer is for a scripting language to control elements within a web page.
Akọmọ Ojú-ẹkọ
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ayẹwo Ẹkọ
Ekele diri gi maka imecha ihe karịrị na Web Development Layers. Ugbu a na ị na-enyochakwa isi echiche na echiche ndị dị mkpa, ọ bụ oge iji nwalee ihe ị ma. Ngwa a na-enye ụdị ajụjụ ọmụmụ dị iche iche emebere iji kwado nghọta gị wee nyere gị aka ịmata otú ị ghọtara ihe ndị a kụziri.
Ị ga-ahụ ngwakọta nke ụdị ajụjụ dị iche iche, gụnyere ajụjụ chọrọ ịhọrọ otu n’ime ọtụtụ azịza, ajụjụ chọrọ mkpirisi azịza, na ajụjụ ede ede. A na-arụpụta ajụjụ ọ bụla nke ọma iji nwalee akụkụ dị iche iche nke ihe ọmụma gị na nkà nke ịtụgharị uche.
Jiri akụkụ a nke nyocha ka ohere iji kụziere ihe ị matara banyere isiokwu ahụ ma chọpụta ebe ọ bụla ị nwere ike ịchọ ọmụmụ ihe ọzọ. Ekwela ka nsogbu ọ bụla ị na-eche ihu mee ka ị daa mba; kama, lee ha anya dị ka ohere maka ịzụlite onwe gị na imeziwanye.
- Which language is used to create the content layer of a web page? A. CSS B. JavaScript C. HTML D. SQL Answer: C
- The presentation layer of a web page is responsible for: A. The text and images B. The colours, fonts and layout C. Reacting to button clicks D. Storing data Answer: B
- Which layer makes a web page interactive, for example validating a form? A. Content layer B. Presentation layer C. Behaviour layer D. Storage layer Answer: C
- CSS is an abbreviation for: A. Computer Style System B. Cascading Style Sheets C. Central Styling Service D. Coded Style Syntax Answer: B
- A main benefit of keeping styles in a separate CSS file is that: A. The page loads no images B. One change restyles many pages at once C. HTML becomes a programming language D. JavaScript is not needed Answer: B
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Ọ dị na ngwa Green Bridge
Budata ngwa Green Bridge CBT na ekwentị maọbụ kọmputa gị iji nweta akwụkwọ ndụmọdụ zuru oke, ajụjụ mmụta, na ndị ọzọ.
Àwọn Ìwé Tó Dáa Láti Kà
Meecha Ajụjụ Ule Ọmarịcha
Ị chọrọ ime ajụjụ ule ọmarịcha gbasara Web Development Layers? Budata ngwa Green Bridge CBT iji nweta ajụjụ ule ọmarịcha na nyocha zuru ezu gbasara isiokwu a.
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