Notice: For the examples the use Jquery remember to embrace the CDN link to Jquery somewhere on the web page..
or download an area copy and seek advice from that. For more details on getting latest Jquery go here. https://code.jquery.com/
- 1 1. Jquery examine if a browser function exists.
- 3 3. Jquery clear type values
- 6 6. Jquery Save and re-load Type values to Native Storage
- 9 9. Jquery get browser IP tackle
1. Jquery examine if a browser function exists.
Typically you need to implement a certain browser function, however it might be too new or not obtainable in all browsers, use this little useful script to verify first. Utilizing (featureName in Window) returns true if the function is current in the browser.Sadly this isn’t a common answer, with certain options and some browsers implement this in a different way. In that case a more full answer is to use one thing like Modernizr JS.
if ("WebSocket" in window) document.write(" WebSockets supported!<. Your browser can do websockets
"); else alert("Error: No Websockets supported. Your Browser DOES NOT support websockets. Upgrade to modern browser");
This small piece of java script code is used to navigate the consumer back to prime of the web page when they’re at the bottom of the page. Start by creating the HTML code for the button link itself. Full Web page Instance
// When the user scrolls down 30px from the top of the document, show the button var Btnypos=30; window.onscroll = function() ReturntoTop(); //attach the event handler
function ReturntoTop() document.getElementById(“BtnToTop”).style.display = “block”; else document.getElementById(“BtnToTop”).style.display = “none”;
// When the user clicks on the button, scroll to the top of the document function topFunction() document.body.scrollTop = 0; // For Safari document.documentElement.scrollTop = 0; // For Chrome, Firefox, IE and Opera
3. Jquery clear type values
Very often you must utterly clear a long types values and reset it.
Typically you need to present the period of one thing as an alternative of simply its actual time. Right here’s a simple snippet that uses any milliseconds time into a human readable format.
const hhmmssDuration = ms => if (ms < 0) ms = -ms; const time = day: Math.floor(ms / 86400000), hour: Math.floor(ms / 3600000) % 24, minute: Math.floor(ms / 60000) % 60, second: Math.floor(ms / 1000) % 60, millisecond: Math.floor(ms) % 1000 ; return Object.entries(time) .filter(val => val !== 0) .map(([key, val]) => `$val $key$val !== 1 ? 's' : ''`) .join(', '); ;
hhmmssDuration (1001); // '1 second, 1 millisecond' hhmmssDuration (34325055574); // '397 days, 6 hours, 44 minutes, 15 seconds, 574 milliseconds'
return confirm("Are you still on this page?");
setInterval( promptMe() , 3000); //displays an alert dialog every 3 seonds
6. Jquery Save and re-load Type values to Native Storage
For longer varieties a pleasant function for visitors is to SAVE their values, in case the consumer re-freshens the page, presses the back button and doesn’t lose all their knowledge. Under is a relatively straightforward method using Jquery and Local Storage to save lots of and reload the values.
/** reloadSaved() reloads saved form data if any exists */ function reloadSaved()
$.each( $('form input'), function() input_name = $(this).attr('id'); if (localStorage[input_name])
$(this).val(localStorage[input_name]); console.log("Restoring: "+input_name +" with "+localStorage[input_name] ) ;
/** SaveForm() saves ALL form data into LocalStorage */ function SaveForm()
$.each( $('#myformID :input'), function() input_name = $(this).attr('id'); localStorage[input_name ] = $(this).val(); console.log("Saving: "+input_name +" = "+ $(this).val() ) ;
Then someplace in the body of the just connect .bind(“change” code to seize any modifications within the type and save them immediately
Go seize the complete type instance here: js_save_load_form.html
Typically you need a simple , albeit not idiot proof since someone can take a display capture of the display to defeat this. For the informal use this will likely suffice. First begin by creating an image link with the right imgId identify
9. Jquery get browser IP tackle
While this is sometimes executed with a server scripting language like PHP , it may also be completed on the shopper using somewhat Jquery AJAX magic and a supporting website on this case JSONIP.com or you may just position your personal in PHP as under.
then type your net page, difficulty the decision.