Java Script is Structured
JavaScript supports structured programming syntax much like C, for
excample if statements, do while loops,
while loops, switch statements, etc. Also JavaScript has function scoping . It
also makes a distinction between expressions and statements. One syntactic
difference from C is automatic semicolon insertion, that allows the semicolons
that would normally terminate statements to be omitted.
Java Script is Dynamic
Dynamic typing
As in most scripting languages, types are associated with
values, not with variables. JavaScript supports various ways to test the type
of an object, including duck typing.
Java Script is Object-based
JavaScript is mostly object-based. Object property names are
string keys. They support two equivalent syntaxes: dot notation (obj.x = 10)
and bracket notation (obj['x'] = 10). Properties and their values can be added,
changed, or deleted at run-time. Most properties of an object (and those on its
prototype inheritance chain) can be enumerated using a for...in loop.
Run-time evaluation
JavaScript includes an eval function that can execute
statements provided as strings at run-time.
Functional
First-class functions
Functions are first-class; they are objects themselves. They
have properties and methods, such as .call() and .bind().
Java Script supports Nested
function
A nested function is
a function defined within another function. It is created each time the outer
function is invoked.
Java Script is Prototype-based
JavaScript uses prototypes where many other object-oriented
languages use classes for inheritance.It is possible to simulate many
class-based features with prototypes in JavaScript.
Friends, that’s all for today . Keep watching this space for
some more interesting articles on Javascript !!
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