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How can I perform a str_replace in JavaScript, replacing text in JavaScript?
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Using regex for string replacement is significantly slower than using a string replace.
As demonstrated on JSPerf, you can have different levels of efficiency for creating a regex, but all of them are significantly slower than a simple strin...
Continuous Integration for Ruby on Rails? [closed]
...lso RSpec, Cucumber, Jasmine, Konacha integrations, and supports arbitrary extra test commands)
Integration with Rake and/or Capistrano (uses Rake to run commands and set up DBs, support continuous deployment using Capistrano or Heroku, or anything really)
A web interface showing the status of the b...
How to change node.js's console font color?
...\x1b[36m%s\x1b[0m', 'I am cyan'); //cyan
console.log('\x1b[33m%s\x1b[0m', stringToMakeYellow); //yellow
Note %s is where in the string (the second argument) gets injected. \x1b[0m resets the terminal color so it doesn't continue to be the chosen color anymore after this point.
Colors reference
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What is Weak Head Normal Form?
...thunks. In this case, t1 would be your 0 (or rather, a thunk to 0 given no extra unboxing)
seq and $! evalute WHNF. Note that
f $! x = seq x (f x)
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Collections.emptyList() vs. new instance
...oo> always creates a new instance of the object so it has a very slight extra cost associated with it which may give you a reason to use Collections.emptyList. I like using emptyList just because it's more readable.
shar...
MongoDB with redis
...fit from the flexibility of MongoDB for main persistent data, and from the extra features provided by Redis (low latency, item expiration, queues, pub/sub, atomic blocks, etc ...). It is indeed a good combination.
Please note you should never run a Redis and MongoDB server on the same machine. Mong...
Unnecessary curly braces in C++?
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The extra braces are used to define the scope of the variable declared inside the braces. It is done so that the destructor will be called when the variable goes out of scope. In the destructor, you may release a mutex (or any ot...
Count, size, length…too many choices in Ruby?
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In most cases (e.g. Array or String) size is an alias for length.
count normally comes from Enumerable and can take an optional predicate block. Thus enumerable.count {cond} is [roughly] (enumerable.select {cond}).length -- it can of course bypass the i...
How do you get a query string on Flask?
Not obvious from the flask documention on how to get the query string. I am new, looked at the docs, could not find!
9 A...
Value Change Listener to JTextField
... private static final long serialVersionUID = 1L;
public static final String TEXT_PROPERTY = "text";
public CoolJTextField() {
this(0);
}
public CoolJTextField(int nbColumns) {
super("", nbColumns);
this.setDocument(new MyDocument());
}
@SuppressWa...