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What is the difference between syntax and semantics in programming languages?
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Syntax is about the structure or the grammar of the language. It answers the question: how do I construct a valid sentence? All languages, even English and other human (aka "natural") languages have grammars, that is, rules that define whether or not the sentence is properly constructed...
clear javascript console in Google Chrome
I was wondering if I could clear up the console with some command..
19 Answers
19
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When do you use varargs in Java?
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Varargs are useful for any method that needs to deal with an indeterminate number of objects. One good example is String.format. The format string can accept any number of parameters, so you need a mechanism to pass in any number of objects.
String.format("This is an integer:...
How to check whether a script is running under Node.js?
...y looking for CommonJS support, this is how the Underscore.js library does it:
Edit: to your updated question:
(function () {
// Establish the root object, `window` in the browser, or `global` on the server.
var root = this;
// Create a reference to this
var _ = new Object();
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What is the difference between a static and a non-static initialization code block
My question is about one particular usage of static keyword. It is possible to use static keyword to cover a code block within a class which does not belong to any function. For example following code compiles:
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How to manually send HTTP POST requests from Firefox or Chrome browser?
... called Postman for this type of stuff. All the other extensions seemed a bit dated so made my own. It also has a bunch of other features which have been helpful for documenting our own API here.
Postman now also has native apps (i.e. standalone) for Windows, Mac and Linux! It is more preferable ...
Creating an object: with or without `new` [duplicate]
... might have already been asked (say, here ); yet I still don't understand it. So, let me ask it.
2 Answers
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Does every Core Data Relationship have to have an Inverse?
Let's say I have two Entity classes: SocialApp and SocialAppType
8 Answers
8
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How can I add to List
...y value from a family of types (rather than any value of a specific type). It means that any of these are legal assignments:
List<? extends Number> foo3 = new ArrayList<Number>; // Number "extends" Number
List<? extends Number> foo3 = new ArrayList<Integer>; // Integer exte...
What is the difference between up-casting and down-casting with respect to class variable
What is the difference between up-casting and down-casting with respect to class variable?
10 Answers
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