HTML
Set up a development environment for Kotlin/React
I wish to develop web applications in Kotlin, since the type safety and the advanced features make the development experience a lot more pleasant. Kotlin can be compiled to Javascript and ran in the browser, but the current guide on how to do this is slightly outdated.
Solution:
This is a bug which crops in when within the layout, you set the parent container's overflow property to “auto” and placing a relatively positioned item within it. This relatively positioned item tends to violate the parent element's boundaries and overflows. The simplest fix to this bug is to position the parent container relatively.
Use the following javascript snippet to access the Users location.
var x = document.getElementById("pos"); function getLocation() {
if (navigator.geolocation) { navigator.geolocation.getCurrentPosition(showPosition);
} else {
x.innerHTML = "Geolocation not enabled.";
} }
function processPosition(position) {
x.innerHTML = "Lat: " +
position.coords.latitude + "<br>Long: " +
position.coords.longitude;
}
By navigator.geolocation the user will be asked for permission to share the location. navigator.geolocation.getCurrentPosition(showPosition) retrieves the location and passes it to the callback function showposition. In the position.coords object lat and long can be accessed, displayed or sent to a server via REST.
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Accessing location in browser
I want to implement a location dependent web application, is there any way of getting access to the users location in the browser?
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Use Boostrap, it introduces screen size dependent css classes. Boostraps grid divides the screen in 12 units. With this example you can have a screen layout that automatically stacks the divs if the screen width is below 768px.
<div class="container-fluid"> <div class="row">
<div class="col-sm-4" style="background-color:green;">.col-sm-4</div> <div class="col-sm-4" style="background-color:red;">.col-sm-4</div> <div class="col-sm-4" style="background-color:green;">.col-sm-4</div>
</div>
</div>
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Responsive layout
Different devices have different screen space, on smartphones a vertical layout might be advantageous over a horizontal. How can we create a responsive layout that automatically determines the screen width and adapts content accordingly, without messing around with media queries and having to customize the layout for each browser?
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Load an image using Html/Javascript
Is it possible (using JavaScript) to load an image stored on the client machine into the browser / browser memory for editing, without uploading the image to a remote server?
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To meet this requirement it is necessary to define proper order of tabulation by setting "tabindex" attribute and also provide the possibility to work with elements (set the checkbox, change value of radio button, submit the button, etc.)
Taggings:
Firstly I made the root div fit the screen by giving it the attribute "height: 100vh;". I then used flexbox to make the root div show the items in a colum by adding "display: flex; flex-direction:column;". The last thing I added was "flex: 1;" to the content div which is equivalent to "flex: 1 1 0;" This means "flex-grow : 1; flex-shrink : 1; flex-basis : 0;". Grow and shrink make the div grow and shrink in same proportion as the window-size. Basis makes the div take up screen as per the screen size available. For example if there are 4 divs with this they will all take up 25% of the available space.
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Pages
