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JavaScript's Strict Mode

JavaScript’s Strict Mode

JavaScript’s strict mode isn’t exactly a flashy part of modern JavaScript versions, but it’s still very important. Strict mode marks the beginning of a decade-long (and continuing) push to modernize the JavaScript language. And the first step in modernization was to disallow some of the old, confusing behavior.

JavaScript has historically had several pain points. One of them being variable…

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The HMTL5 INS Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development The ins element represents an addition to the document. The ins elements should not cross implied paragraph boundaries.

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The HMTL5 DEL Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development The del element represents a removal from the document. The del element should not cross implied paragraph boundaries.

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The HMTL5 SMALL Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development Represents side comments such as small print. It is not intended to be presentational. The small…

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The HMTL5 S Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development The s element represents contents that are no longer accurate or no longer relevant.

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The HMTL5 U Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development The u element represents a span of text with an unarticulated, though explicitly rendered, non-textual annotation (when you are annotating something, but not explicitly saying what it is).

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The HMTL5 B Element

The HMTL5 B Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

Represents a span of text to be stylistically offset from the normal prose without conveying any extra importance. Examples are key words in a document abstract, product names in a review, or other spans of text whose typical typographic presentation is bold.

The b element should be used as a last resort when no other element is more appropriate. In particular, headings should use the h1 to h6

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The HMTL5 I Element

The HMTL5 I Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

Represents a span of text in an alternate voice or mood, or otherwise offset from the normal prose, such as a taxonomic designation, a technical term, an idiomatic phrase from another language, a thought, a ship name, or some other prose whose typical typographic presentation is italicized.

Only use i when nothing more suitable is available — e.g., em for text with stress emphasis, strong for…

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The HMTL5 EM Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development Represents stress emphasis of its contents. The level of emphasis that a particular piece of content has is given by its number of ancestor…

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The HMTL5 A Element

The HMTL5 A Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

If the a element has an href attribute, then it represents a hyperlink (a hypertext anchor). If the a element has no href attribute, then the element represents a placeholder for where a link might otherwise have been placed, if it had been relevant.

The target, rel, media, hreflang, and type attributes must be omitted if the href attribute is not present.

https://html.spec.whatwg.org/#the-…

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The HMTL5 AREA Element

The HMTL5 AREA Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

The area element represents either a hyperlink with some text and a corresponding area on an image map, or a dead area on an image map.

If the area element has no href attribute, then the area represented by the element cannot be selected, and the alt attribute must be omitted.

https://html.spec.whatwg.org/#the-area-element

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The HMTL5 MAP Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development The map element, in conjunction with any area element descendants, defines an image map. The element represents its children.

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The HMTL5 TRACK Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development The track element allows authors to specify explicit external timed text tracks for media elements. It does not represent anything on its own.

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The HMTL5 CANVAS Element

The HMTL5 CANVAS Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

Represents a resolution-dependent bitmap canvas, which can be used for rendering graphs, game graphics, or other visual images on the fly.

Authors should not use the canvas element in a document when a more suitable element is available. For example, it is inappropriate to use a canvas element to render a page heading. If the desired presentation of the heading is graphically intense, it…

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The HMTL5 STRONG Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development Represents strong importance for its contents. Indicate relative importance by nesting strong elements; each strong element increases the importance of its contents. Changing the importance of a piece of text with the strong element does not change the meaning of the sentence.

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The HMTL5 IMG Element

The HMTL5 IMG Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

An img element represents an image. The image given by the src attribute is the embedded content, and the value of the alt attribute is the img element’s fallback content.

The src attribute must be present, and must contain a valid non-empty URL potentially surrounded by spaces referencing a non-interactive, optionally animated, image resource that is neither paged nor scripted.

The img ele…

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The HMTL5 IFRAME Element

The HMTL5 IFRAME Element #100DaysOfCode #HTML #HTML5 #DEVCommunity #CodeNewbie #WebDevelopers #Development

The iframe element represents a nested browsing context.

For iframe elements in HTML documents, the attribute, if present, must have a value using the HTML syntax that consists of the following syntactic components, in the given order:

Any number of comments and space characters.

Optionally, a DOCTYPE.

Any number of comments and space characters.

The root element, in the form of an html elemen…