2017 — 2021 update Since 2009 when this question was asked, JavaScript has evolved significantly. All other answers are now obsolete or overly complicated. Here is the current best practice: Run code snippet This is it. await sleep(<duration>). Or as a one-liner: Note that, await can only be executed in functions prefixed with the async keyword, or at the … Read more
strtok() divides the string into tokens. i.e. starting from any one of the delimiter to next one would be your one token. In your case, the starting token will be from “-” and end with next space ” “. Then next token will start from ” ” and end with “,”. Here you get “This” … Read more
++ is not an operator. It is two + operators. The + operator is the identity operator, which does nothing. (Clarification: the + and – unary operators only work on numbers, but I presume that you wouldn’t expect a hypothetical ++ operator to work on strings.) Parses as Which translates to You have to use the slightly longer += operator to do what you want to do: I suspect the ++ and — operators … Read more
nslookup google.com is the easiest way. Works on Linux and Windows. If your issue is that your DNS server is not returning a response for google.com, use a different DNS server, such as a public one. For instance, you could do: nslookup>server 8.8.8.8>google.com For a more thorough solution to getting around annoying Internet filters, look … Read more
Find the index of the array element you want to remove using indexOf, and then remove that index with splice. The splice() method changes the contents of an array by removing existing elements and/or adding new elements. Run code snippet The second parameter of splice is the number of elements to remove. Note that splice modifies the array in place and returns a … Read more
git revert makes a new commit git revert simply creates a new commit that is the opposite of an existing commit. It leaves the files in the same state as if the commit that has been reverted never existed. For example, consider the following simple example: In this example the commit history has two commits … Read more
The way is or in short Using sudo will ask to enter your root password to confirm the action, but although common, is considered unsafe. If you do not have a root password (if you are not the admin) you should probably work with virtualenv. You can also use the user flag to install it on this user only.
Unfortunately – it could be many things – and lots of app servers and other java ‘wrappers’ are prone to play with properties and their ‘own’ take on keychains and what not. So it may be looking at something totally different. Short of truss-ing – I’d try: to see if that helps. Instead of ‘all’ … Read more
The reason why has to do with the type system. C/C++ doesn’t really support strings as a type. It does support the idea of a constant char array but it doesn’t really fully understand the notion of a string. In order to generate the code for a switch statement the compiler must understand what it … Read more
Sort homes by price in ascending order: Or after ES6 version: Some documentation can be found here. For descending order, you may use