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javascript Programming Glossary: lexicalIs it possible to achieve dynamic scoping in JavaScript without resorting to eval? http://stackoverflow.com/questions/10060857/is-it-possible-to-achieve-dynamic-scoping-in-javascript-without-resorting-to-eva in JavaScript without resorting to eval JavaScript has lexical scoping which means that non local variables accessed from within.. print 1 or 2 The above program prints 1 and then 2 in a lexically scoped language and it prints 3 and then 1 in a dynamically.. 1 in a dynamically scoped language. Since JavaScript is lexically scoped it will print 1 and then 2 as demonstrated below var..
http://stackoverflow.com/questions/1047454/what-is-lexical-scope is lexical scope I want a brief intro to lexical scope javascript lexical.. is lexical scope I want a brief intro to lexical scope javascript lexical scope share improve this question.. scope I want a brief intro to lexical scope javascript lexical scope share improve this question I understand them through..
How do JavaScript closures work? http://stackoverflow.com/questions/111102/how-do-javascript-closures-work Simply accessing variables outside of your immediate lexical scope creates a closure . function foo x var tmp 3 return function..
Javascript infamous Loop problem? http://stackoverflow.com/questions/1451009/javascript-infamous-loop-problem just means that the enclosing scope gets added to the lexical environment of the enclosed function. After the loop terminates..
http://stackoverflow.com/questions/1823612/lexer-written-in-javascript software unions both A regular expression based lexical analyzer generator matching individual tokens from the input..
How to access the correct `this` / context inside a callback? http://stackoverflow.com/questions/20279484/how-to-access-the-correct-this-context-inside-a-callback not how when where it was defined. It is not affected by lexical scope like other variables. Here are some examples function.. alert self.data Since self is a normal variable it obeys lexical scope rules and is accessible inside the callback. Explicitly..
How to get the global object in JavaScript? http://stackoverflow.com/questions/3277182/how-to-get-the-global-object-in-javascript global environment as both the variable environment and lexical environment for the eval code. See details on Entering Eval.. an indirect call to eval on ES3 will use the variable and lexical environments of the caller as the environments for the eval..
http://stackoverflow.com/questions/3725546/variable-hoisting is because javascript doesnt really have a true sense of lexical scoping. This is why its considered best practise to have all..
Understanding the difference between Object.create() and new SomeFunction() in JavaScript http://stackoverflow.com/questions/4166616/understanding-the-difference-between-object-create-and-new-somefunction-in-j with the functional syntax. This is logical given the lexical vs block type scope of JavaScript. Are the above statements.. with the functional syntax. This is logical given the lexical vs block type scope of JavaScript. Well you can create closures..
Closures in a for loop and lexical environment http://stackoverflow.com/questions/4418326/closures-in-a-for-loop-and-lexical-environment in a for loop and lexical environment Simple case I want to load several images which..
jQuery question: what does it really mean? http://stackoverflow.com/questions/5305634/jquery-question-what-does-it-really-mean might have been called and this would still work makes a lexical window variable that would mean faster lookups for global variables..
Doesn't JavaScript support closures with local variables? http://stackoverflow.com/questions/643542/doesnt-javascript-support-closures-with-local-variables just means that the enclosing scope gets added to the lexical environment of the enclosed function. After the loop terminates..
Why is arr = [] faster than arr = new Array? http://stackoverflow.com/questions/7375120/why-is-arr-faster-than-arr-new-array VM specific optimizations First we go through the lexical analysis phase where we tokenize the code. By way of example.. create an array and populate it. As far as ambiguity the lexical analysis stage has already distinguished ARRAY_INIT from an..
Does use of anonymous functions affect performance? http://stackoverflow.com/questions/80802/does-use-of-anonymous-functions-affect-performance they have the same body of code and no binding to the lexical scope closure . The following seems faster on the other hand..
http://stackoverflow.com/questions/1047454/what-is-lexical-scope this question I understand them through examples First Lexical Scope also called Static Scope in C like syntax void fun int..
Why do catch clauses have their own lexical environment? http://stackoverflow.com/questions/15034864/why-do-catch-clauses-have-their-own-lexical-environment from ECMA 262 v5.1 which I recently saw in this question A Lexical Environment is a specification type used to define the association.. upon the lexical nesting structure of ECMAScript code. A Lexical Environment consists of an Environment Record and a possibly.. Record and a possibly null reference to an outer Lexical Environment. Usually a Lexical Environment is associated with..
What is the scope of a function in Javascript/ECMAScript? http://stackoverflow.com/questions/235360/what-is-the-scope-of-a-function-in-javascript-ecmascript Javascript The Definitive Guide 5th Edition 8.8.1 Lexical Scoping Functions in JavaScript are lexically rather than dynamically..
Can't use “download” as a function name in javascript http://stackoverflow.com/questions/7852237/cant-use-download-as-a-function-name-in-javascript that is being constructed. As per the HTML5 specification Lexical Environment Scope Let Scope be the result of NewObjectEnvironment..
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