I’d like to have an HTML canvas context that I can paint to and read off-screen (in this example, writing text and reading the shape that is created, but it’s a general question). I may also want to use a canvas as an off-screen frame-buffer. I suppose I could create a hidden DOM element but I’d rather create it from
Tag: javascript
Set default value of Javascript object attributes
Is there a way to set the default attribute of a Javascript object such that: Answer Since I asked the question several years ago things have progressed nicely. Proxies are part of ES6. The following example works in Chrome, Firefox, Safari and Edge: Read more in Mozilla’s documentation on Proxies.
javascript innerHTML adding instead of replacing
quick question, i know we can change the content of a <div id=”whatEverId”>hello one<div> by using: now, is there a way I can ADD stuff to the div instead of replacing it??? so i can get <div id=”whatEverId”>hello one hello two<div> (using something similar of course) Answer
How to serialize an Object into a list of URL query parameters?
Without knowing the keys of a JavaScript Object, how can I turn something like… …into… …? Answer Example: http://jsfiddle.net/WFPen/
Can I run HTML files directly from GitHub, instead of just viewing their source?
If I have a .html file in a GitHub repository, e.g. for running a a set of JavaScript tests, is there any way I can view that page directly—thus running the tests? For example, could I somehow actually see the test results that would be produced by the jQuery test suite, without downloading or cloning the repo to my local
How can I get city name from a latitude and longitude point?
Is there a way to get a city name from a latitude and longitude point using the google maps api for javascript? If so could I please see an example? Answer This is called Reverse Geocoding Documentation from Google: http://code.google.com/apis/maps/documentation/geocoding/#ReverseGeocoding. Sample Call to Google’s geocode Web Service: http://maps.googleapis.com/maps/api/geocode/json?latlng=40.714224,-73.961452&sensor=true&key=YOUR_KEY
URL Encode a string in jQuery for an AJAX request
I’m implementing Google’s Instant Search in my application. I’d like to fire off HTTP requests as the user types in the text input. The only problem I’m having is that when the user gets to a space in between first and last names, the space is not encoded as a +, thus breaking the search. How can I either replace
Convert UTC date time to local date time
From the server I get a datetime variable in this format: 6/29/2011 4:52:48 PM and it is in UTC time. I want to convert it to the current user’s browser time zone using JavaScript. How this can be done using JavaScript or jQuery? Answer Append ‘UTC’ to the string before converting it to a date in javascript:
Test for multiple cases in a switch, like an OR (||)
How would you use a switch case when you need to test for a or b in the same case? Answer You can use fall-through:
Data graphing with html [closed]
Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers. We don’t allow questions seeking recommendations for books, tools, software libraries, and more. You can edit the question so it can be answered with facts and citations. Closed 6 years ago. Improve this question A line chart that updates every couple of seconds and doesn’t