Do You Know New Input Type Attribute In Html5?
Yes we can use below new input type Attribute in HTML5
Type Value
tel The input is of type telephone number
search The input field is a search field
url a URL
email One or more email addresses
datetime A date and/or time
date A date
month A month
week A week
time The input value is of type time
datetime-local A local date/time
number A number
range A number in a given range
color A hexadecimal color, like #82345c
placeholder Specifies a short hint that describes the expected value
of an input field
What Is The Use Of Localstorage In Html5 ?
Before HTML5 LocalStores was done with cookies. Cookies are not very good for large amounts of data, because they are passed on by every request to the server, so it was very slow and in-effective.
In HTML5, the data is NOT passed on by every server request, but used ONLY when asked for. It is possible to store large amounts of data without affecting the website's performance and the data is stored in different areas for different websites, and a website can only access data stored by itself.
And for creating localstores just need to call localStorage object like below we are storing name and address
<script type="text/javascript">
localStorage.name="PCDS";
document.write(localStorage.name);
</script>
<script type="text/javascript">
localStorage.address="Mumbai India..";
document.write(localStorage.address);
</script>
What Is The Sessionstorage Object In Html5 ? How To Create And Access ?
The sessionStorage object stores the data for one session. The data is deleted when the user closes the browser window. like below we can create and access a sessionStorage here we created "name" as session
<script type="text/javascript">
sessionStorage.name="PCDS";
document.write(sessionStorage.name);
</script>
What’s New Html 5 Doctype And Charset?
Normally for HTML files first line of code is DocType which basically tells browser about specific version of HTML. HTML5 is now not subset of SGML. As compared to previous version/standards of HTML, DocType is simplified as follows
<!doctype html>
And HTML 5 uses UTF-8 encoding as follows
<meta charset=”UTF-8″>
Give An Example Of Adding Canvas In Html5?
<canvas id="myCanvas" width="200" height="100"></canvas>
What The Use Of Canvas Element In Html5?
The canvas element is used to draw graphics images on a web page by using javascript like below
<canvas id="pcdsCanvas" width="500" height="400"></canvas>
<script type="text/javascript">
var pcdsCanvas=document.getElementById("pcdsCanvas");
var pcdsText=pcdsCanvas.getContext("2d");
pcdsText.fillStyle="#82345c";
pcdsText.fillRect(0,0,150,75);
</script>
What Is Web Forms 2.0 In Html5?
Forms Section in HTML5 is known as Web Forms 2.0. It’s basically an extension to HTML4 forms features. Web Forms 2.0 in HTML5 provides comparatively a greater degree of semantic markups than HTML4 as well as removing the need of lengthy and tedious scripting and styling, as a result making HTML5 more richer but simpler in use.
Briefly Explain Cache Manifest File In Html5 With An Example?
Cache manifest file is simply a text file that dictates the browser, what to store for offline access? It basically list down the required resources for offline access.
</> Following is an example of a simple manifest file
CACHE MANIFEST
/decorate.css
/work.js
/amazing.jpg
So, the resources mentioned in above manifest file (decorate.css, work.js, and amazing.jpg) will be downloaded and cached locally for offline access.
What Is An Html5 Web Worker?
Normally if some script is executing in an HTML page, the page remains unresponsive until the scripts execution stops. But an HTML5 web worker is a script (i.e. JavaScript) that keeps executing in background. At the same time user can interact with the page and will not feel any performance degradation.HTML5 Web Worker
HTML5 web worker normally exists in external files and used for long-running CPU intensive tasks but without affecting the User Interface or other scripts.
What Are The Limitations Of Html5 Web Worker?
HTML5 Web worker seems to be very handy in many scenarios (especially for CPU intensive tasks) but it has certain limitations. Few JavaScript objects are not accessible to HTML5 web worker as
•parent object
•window object
•document object.
How Can We Embed Audio In Html5?
HTML 5 comes with a standard way of embedding audio files as previously we don’t have any such support on a web page. Supported audio formats are as follows
•MP3
•Wav
•Ogg.
Below is the most simple way to embed an audio file on a web page.
<audio controls>
<source src=”jamshed.mp3″ type=”audio/mpeg”>
Your browser does’nt support audio embedding feature.
</audio>
In above code, src value can be relative as well as absolute URL. We can also use multiple <source> elements pointing to different audio files. There are more new attributes for <audio> tag other than src as below
•controls – it adds controls such as volume, play and pause.
•autoplay – it’s a boolean value which specifies that audio will start playing once it’s ready.
•loop – it’s also a boolean value which specifies looping (means it automatically start playing after it ends).
•preload – auto, metadata and none are the possible values for this attribute.
•auto means plays as it loaded.
•metadata displays audio file’s associated data
•none means not pre-loaded.
What Are The New Media Element In Html 5 Other Than Audio And Video?
HTML 5 has strong support for media. Other than audio and video tags, it comes with the following tags
<embed> Tag: <embed> acts as a container for external application or some interactive content such as a plug-in. Special about <embed> is that it doesn’t have a closing tag as we can see below
<embed type=”video/quicktime” src=”Fishing.mov”>
<source> Tag: <source> is helpful for multiple media sources for audio and video.
<video width=”450″ height=”340″ controls>
<source src=”jamshed.mp4″ type=”video/mp4″>
<source src=”jamshed.ogg” type=”video/ogg”>
</video>
<track> Tag: <track> defines text track for media like subtitles as
<video width=”450″ height=”340″ controls>
<source src=”jamshed.mp4″ type=”video/mp4″>
<source src=”jamshed.ogg” type=”video/ogg”>
<track kind=”subtitles” label=”English” src=”jamshed_en.vtt” srclang=”en” default></track>
<track kind=”subtitles” label=”Arabic” src=”jamshed_ar.vtt” srclang=”ar”></track>
</video>
What Are The Different Types Of Storage In Html 5?
HTML 5 has the capability to store data locally. Previously it was done with the help of cookies. Exciting thing about this storage is that its fast as well as secure.
There are two different objects which can be used to store data.
•localStorage object stores data for a longer period of time even if the browser is closed.
•sessionStorage object stores data for a specific session.
What Are The Deprecated Elements In Html5 From Html4?
Elements that are deprecated from HTML 4 to HTML 5 are
•frame
•frameset
•noframe
•applet
•big
•center
•basefront
What Are The New Apis Provided By Html 5 Standard?
HTML 5 standard comes with a number of new APIs. Few of it are as follows
•Media API
•Text Track API
•Application Cache API
•User Interaction
•Data Transfer API
•Command API
•Constraint Validation API
•History API
•and many more
What Is The Difference Between Html 5 Application Cache And Regular Html Browser Cache?
One of the key feature of HTML 5 is “Application Cache” that enables us to make an offline version of a web application. It allows to fetch few or all of website contents such as HTML files, CSS, images, javascript etc locally. This feature speeds up the site performance. This is achieved with the help of a manifest file defined as follows
<!doctype html>
.....
As compared with traditional browser caching, Its not compulsory for the user to visit website contents to be cached.
In order to achieve Application Cache feature in HTML5, a manifest file is used as follows
<!doctype html>
…..
Manifest file is basically a text file that dictates what needs to be cache or not if Application Cache is enabled. Followings are the four main sections of a manifest file where CACHE MANIFEST is the only required section
•CACHE MANIFEST
•CACHE
•NETWORK
•FALLBACK
How To Add Video And Audio In Html5?
Like below we can add video in html5
<video width="320" height="240" controls="controls">
<source src="pcds.mp4" type="video/mp4" />
<source src="pcds.ogg" type="video/ogg" />
</video>
And audio like this
<audio controls="controls">
<source src="song.ogg" type="audio/ogg" />
<source src="song.mp3" type="audio/mpeg" />
</audio>
Yes we can use below new input type Attribute in HTML5
Type Value
tel The input is of type telephone number
search The input field is a search field
url a URL
email One or more email addresses
datetime A date and/or time
date A date
month A month
week A week
time The input value is of type time
datetime-local A local date/time
number A number
range A number in a given range
color A hexadecimal color, like #82345c
placeholder Specifies a short hint that describes the expected value
of an input field
What Is The Use Of Localstorage In Html5 ?
Before HTML5 LocalStores was done with cookies. Cookies are not very good for large amounts of data, because they are passed on by every request to the server, so it was very slow and in-effective.
In HTML5, the data is NOT passed on by every server request, but used ONLY when asked for. It is possible to store large amounts of data without affecting the website's performance and the data is stored in different areas for different websites, and a website can only access data stored by itself.
And for creating localstores just need to call localStorage object like below we are storing name and address
<script type="text/javascript">
localStorage.name="PCDS";
document.write(localStorage.name);
</script>
<script type="text/javascript">
localStorage.address="Mumbai India..";
document.write(localStorage.address);
</script>
What Is The Sessionstorage Object In Html5 ? How To Create And Access ?
The sessionStorage object stores the data for one session. The data is deleted when the user closes the browser window. like below we can create and access a sessionStorage here we created "name" as session
<script type="text/javascript">
sessionStorage.name="PCDS";
document.write(sessionStorage.name);
</script>
 |
| Splunk Technology Frequently Asked HTML Interview Questions Answers |
What’s New Html 5 Doctype And Charset?
Normally for HTML files first line of code is DocType which basically tells browser about specific version of HTML. HTML5 is now not subset of SGML. As compared to previous version/standards of HTML, DocType is simplified as follows
<!doctype html>
And HTML 5 uses UTF-8 encoding as follows
<meta charset=”UTF-8″>
Give An Example Of Adding Canvas In Html5?
<canvas id="myCanvas" width="200" height="100"></canvas>
The canvas element is used to draw graphics images on a web page by using javascript like below
<canvas id="pcdsCanvas" width="500" height="400"></canvas>
<script type="text/javascript">
var pcdsCanvas=document.getElementById("pcdsCanvas");
var pcdsText=pcdsCanvas.getContext("2d");
pcdsText.fillStyle="#82345c";
pcdsText.fillRect(0,0,150,75);
</script>
What Is Web Forms 2.0 In Html5?
Forms Section in HTML5 is known as Web Forms 2.0. It’s basically an extension to HTML4 forms features. Web Forms 2.0 in HTML5 provides comparatively a greater degree of semantic markups than HTML4 as well as removing the need of lengthy and tedious scripting and styling, as a result making HTML5 more richer but simpler in use.
Briefly Explain Cache Manifest File In Html5 With An Example?
Cache manifest file is simply a text file that dictates the browser, what to store for offline access? It basically list down the required resources for offline access.
</> Following is an example of a simple manifest file
CACHE MANIFEST
/decorate.css
/work.js
/amazing.jpg
So, the resources mentioned in above manifest file (decorate.css, work.js, and amazing.jpg) will be downloaded and cached locally for offline access.
What Is An Html5 Web Worker?
Normally if some script is executing in an HTML page, the page remains unresponsive until the scripts execution stops. But an HTML5 web worker is a script (i.e. JavaScript) that keeps executing in background. At the same time user can interact with the page and will not feel any performance degradation.HTML5 Web Worker
HTML5 web worker normally exists in external files and used for long-running CPU intensive tasks but without affecting the User Interface or other scripts.
What Are The Limitations Of Html5 Web Worker?
HTML5 Web worker seems to be very handy in many scenarios (especially for CPU intensive tasks) but it has certain limitations. Few JavaScript objects are not accessible to HTML5 web worker as
•parent object
•window object
•document object.
How Can We Embed Audio In Html5?
HTML 5 comes with a standard way of embedding audio files as previously we don’t have any such support on a web page. Supported audio formats are as follows
•MP3
•Wav
•Ogg.
Below is the most simple way to embed an audio file on a web page.
<audio controls>
<source src=”jamshed.mp3″ type=”audio/mpeg”>
Your browser does’nt support audio embedding feature.
</audio>
In above code, src value can be relative as well as absolute URL. We can also use multiple <source> elements pointing to different audio files. There are more new attributes for <audio> tag other than src as below
•controls – it adds controls such as volume, play and pause.
•autoplay – it’s a boolean value which specifies that audio will start playing once it’s ready.
•loop – it’s also a boolean value which specifies looping (means it automatically start playing after it ends).
•preload – auto, metadata and none are the possible values for this attribute.
•auto means plays as it loaded.
•metadata displays audio file’s associated data
•none means not pre-loaded.
What Are The New Media Element In Html 5 Other Than Audio And Video?
HTML 5 has strong support for media. Other than audio and video tags, it comes with the following tags
<embed> Tag: <embed> acts as a container for external application or some interactive content such as a plug-in. Special about <embed> is that it doesn’t have a closing tag as we can see below
<embed type=”video/quicktime” src=”Fishing.mov”>
<source> Tag: <source> is helpful for multiple media sources for audio and video.
<video width=”450″ height=”340″ controls>
<source src=”jamshed.mp4″ type=”video/mp4″>
<source src=”jamshed.ogg” type=”video/ogg”>
</video>
<track> Tag: <track> defines text track for media like subtitles as
<video width=”450″ height=”340″ controls>
<source src=”jamshed.mp4″ type=”video/mp4″>
<source src=”jamshed.ogg” type=”video/ogg”>
<track kind=”subtitles” label=”English” src=”jamshed_en.vtt” srclang=”en” default></track>
<track kind=”subtitles” label=”Arabic” src=”jamshed_ar.vtt” srclang=”ar”></track>
</video>
What Are The Different Types Of Storage In Html 5?
HTML 5 has the capability to store data locally. Previously it was done with the help of cookies. Exciting thing about this storage is that its fast as well as secure.
There are two different objects which can be used to store data.
•localStorage object stores data for a longer period of time even if the browser is closed.
•sessionStorage object stores data for a specific session.
What Are The Deprecated Elements In Html5 From Html4?
Elements that are deprecated from HTML 4 to HTML 5 are
•frame
•frameset
•noframe
•applet
•big
•center
•basefront
What Are The New Apis Provided By Html 5 Standard?
HTML 5 standard comes with a number of new APIs. Few of it are as follows
•Media API
•Text Track API
•Application Cache API
•User Interaction
•Data Transfer API
•Command API
•Constraint Validation API
•History API
•and many more
What Is The Difference Between Html 5 Application Cache And Regular Html Browser Cache?
One of the key feature of HTML 5 is “Application Cache” that enables us to make an offline version of a web application. It allows to fetch few or all of website contents such as HTML files, CSS, images, javascript etc locally. This feature speeds up the site performance. This is achieved with the help of a manifest file defined as follows
<!doctype html>
.....
As compared with traditional browser caching, Its not compulsory for the user to visit website contents to be cached.
In order to achieve Application Cache feature in HTML5, a manifest file is used as follows
<!doctype html>
…..
Manifest file is basically a text file that dictates what needs to be cache or not if Application Cache is enabled. Followings are the four main sections of a manifest file where CACHE MANIFEST is the only required section
•CACHE MANIFEST
•CACHE
•NETWORK
•FALLBACK
Like below we can add video in html5
<video width="320" height="240" controls="controls">
<source src="pcds.mp4" type="video/mp4" />
<source src="pcds.ogg" type="video/ogg" />
</video>
And audio like this
<audio controls="controls">
<source src="song.ogg" type="audio/ogg" />
<source src="song.mp3" type="audio/mpeg" />
</audio>
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