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How do I obtain the frequencies of each value in an FFT?
I have an FFT result. These are stored in two double arrays: a real part array and an imaginary part array. How do I determine the frequencies that correspond to each element in these arrays?
...
What is the difference between Ruby 1.8 and Ruby 1.9
...(main):001:0> {1,2}
=> {1=>2}
Action: Convert to {1 => 2}
Array.to_s Now Contains Punctuation
Ruby 1.9
irb(main):001:0> [1,2,3].to_s
=> "[1, 2, 3]"
Ruby 1.8.6
irb(main):001:0> [1,2,3].to_s
=> "123"
Action: Use .join instead
Colon No Longer Valid In When Stateme...
How to execute a JavaScript function when I have its name as a string
...on executeFunctionByName(functionName, context /*, args */) {
var args = Array.prototype.slice.call(arguments, 2);
var namespaces = functionName.split(".");
var func = namespaces.pop();
for(var i = 0; i < namespaces.length; i++) {
context = context[namespaces[i]];
}
return context...
Android Bitmap to Base64 String
...
use following method to convert bitmap to byte array:
ByteArrayOutputStream byteArrayOutputStream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, byteArrayOutputStream);
byte[] byteArray = byteArrayOutputStream .toByteArray();
to encode...
Set “this” variable easily?
...slightly different method apply, which takes the function parameters as an array:
myFunction.apply(obj, [arg1, arg2, ...]);
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Initializing a struct to 0
...n aggregate, or fewer characters in a string literal used to initialize an array of known size than there are elements in the array, the remainder of the aggregate shall be initialized implicitly the same as objects that have static storage duration.
Good Read:
C and C++ : Partial initialization o...
HTTP Content-Type Header and JSON
...ON,image(png,jpg,etc..),html.
Keep in mind, that JSON in JavaScript is an array or object. If you want to see all the data, use console.log instead of alert:
alert(response.text); // Will alert "[object Object]" string
console.log(response.text); // Will log all data objects
If you want to alert...
Android: Test Push Notification online (Google Cloud Messaging) [closed]
... 'API_ACCESS_KEY', 'YOUR-API-ACCESS-KEY-GOES-HERE' );
$registrationIds = array("YOUR DEVICE IDS WILL GO HERE" );
// prep the bundle
$msg = array
(
'message' => 'here is a message. message',
'title' => 'This is a title. title',
'subtitle' => 'This is a subti...
RegEx to extract all matches from string using RegExp.exec
...tern), if pattern has the global flag g, will return all the matches as an array.
For example:
const str = 'All of us except @Emran, @Raju and @Noman was there';
console.log(
str.match(/@\w*/g)
);
// Will log ["@Emran", "@Raju", "@Noman"]
...
Serialize Class containing Dictionary member
... an unexpected wrapper element if you try storing custom objects or string arrays in it. (See my question for an example of the issues I faced with this.)
– Christopher Kyle Horton
Mar 20 '18 at 15:43
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