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Create a unique number with javascript time
...tDate < 10) ? '0' : '') + now.getDate().toString(); // pad with a 0
... etc... with .getHours(), getMinutes(), getSeconds(), getMilliseconds()
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How can I add timestamp to logs using Node.js library Winston?
... Also there are logger types like rolling file appender, console appender, etc. As a addon your log files will be colorful based on the log level [Trace, Info, Debug, Error, Fatal] ;)
log4js will override your console.log It is a configurable parameter now in 0.5+
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What is the difference between D3 and jQuery?
... have all the extra overhead like jquery, backbone + its plugins, angular, etc. You only need to know d3. Now d3 doesn't have a routing system baked into it. But you can always find one.
Jquery on the other hand, it's sole purpose is to write less code. It's just a short hand version of javascript ...
SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*
...ar chat = $.connection.chatHub;
// Create a function that the hub can call to broadcast messages.
chat.client.addChatMessage = function (who, message) {
// Html encode display name and message.
var encodedName = $('<div />').text(who).html();
var encodedMsg = $(...
How do I obtain the frequencies of each value in an FFT?
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i: Bin to access
samples: Sampling rate in Hertz (i.e. 8000 Hz, 44100Hz, etc.)
nFFT: Size of the FFT vector
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Is JavaScript an untyped language?
...because, unlike some languages which distinguish between float and integer etc, it just uses one number type to encompass all numbers, and makes use of the type coercion mentioned previously[Section 9 of ECMAScript Spec], in strong contrast to a strongly-typed language which would have very specific...
How do browser cookie domains work?
...ookie with domain=y.z.com is applicable to y.z.com, x.y.z.com, a.x.y.z.com etc.
Examples of public suffixes - com, edu, uk, co.uk, blogspot.com, compute.amazonaws.com
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How to get a list of column names on Sqlite3 database?
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PRAGMA table_info(table_name);
will get you a list of all the column names.
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Find duplicate lines in a file and count how many time each line was duplicated?
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This is what I do however algorithmically this is doesnt seem to be the most efficient approach (O(n log n)*avg_line_len where n is number of lines). I'm working on files that are several gigabytes large, so performance is a key issue. I wonder whether there is ...
Run a JAR file from the command line and specify classpath
...t's for internal use (ie, you expect the user to have some technical skill etc.) you can just ask that step 1, before attempting to run the jar, is to run unzip MyJar.jar lib/*.jar. Then, as you suggest, they can run java -cp MyJar.jar:lib/* ...
– Roger
Oct 31 ...