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Converting from longitude\latitude to Cartesian coordinates
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Theory for convert GPS（WGS84) to Cartesian coordinates
https://en.wikipedia.org/wiki/Geographic_coordinate_conversion#From_geodetic_to_ECEF_coordinates
The following is what I am using:
Longitude in GPS（WGS84） and Cartesian coordinates are the same.
Latitude need be conv...
How to get the function name from within that function?
...ld output the name of the calling constructor (eg "Foo").
More info here: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Function/Caller
They claim it's non-standard, but also that it's supported by all major browsers: Firefox, Safari, Chrome, Opera and IE.
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How can I transition height: 0; to height: auto; using CSS?
...height to something bigger than your box will ever get.
See JSFiddle demo provided by Chris Jordan in another answer here.
#menu #list {
max-height: 0;
transition: max-height 0.15s ease-out;
overflow: hidden;
background: #d5d5d5;
}
#menu:hover #list {
max-height: 5...
Can I escape html special chars in javascript?
I want to display a text to HTML by a javascript function. How can I escape html special chars in JS? Is there an API ?
15 ...
Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server
This should be dead simple, but I cannot get it to work for the life of me.
I'm just trying to connect remotely to my MySQL server.
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How to display all methods of an object?
...}
//example: getMethods(new Date()): [ 'getFullYear', 'setMonth', ... ]
https://jsfiddle.net/3xrsead0/
This won't work for something like the original question (Math), so pick your solution based on your needs. I'm posting this here because Google sent me to this question but I was wanting to kn...
Officially, what is typename for?
On occasion I've seen some really indecipherable error messages spit out by gcc when using templates... Specifically, I've had problems where seemingly correct declarations were causing very strange compile errors that magically went away by prefixing the typename keyword to the beginning of the...
Error: Can't set headers after they are sent to the client
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The res object in Express is a subclass of Node.js's http.ServerResponse (read the http.js source). You are allowed to call res.setHeader(name, value) as often as you want until you call res.writeHead(statusCode). After writeHead, the headers ar...
What's the difference between HEAD^ and HEAD~ in Git?
When I specify an ancestor commit object in Git, I'm confused between HEAD^ and HEAD~ .
15 Answers
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Why does Java's hashCode() in String use 31 as a multiplier?
Per the Java documentation, the hash code for a String object is computed as:
13 Answers
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