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Showing posts with the label Ecmascript 5
For Javascript, What Prevents Modern Implementation Not To Treat Arguments As A Real Array?

For Javascript, What Prevents Modern Implementation Not To Treat Arguments As A Real Array?

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I think it is an old Javascript behavior (Crockford said it is a design error) that inside a functi… Read more For Javascript, What Prevents Modern Implementation Not To Treat Arguments As A Real Array?
Null Vs. Undefined And Their Behaviour In Javascript

Null Vs. Undefined And Their Behaviour In Javascript

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So after a big argument/debate/discussion on the implementation of null and undefined in javascript… Read more Null Vs. Undefined And Their Behaviour In Javascript
How To Simplify Javascript/ecmascript Array Literal Production?

How To Simplify Javascript/ecmascript Array Literal Production?

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I currently implementing a JavaScript/ECMAScript 5.1 parser with JavaCC and have problems with the … Read more How To Simplify Javascript/ecmascript Array Literal Production?
Custom Prototype Chain For A Function

Custom Prototype Chain For A Function

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I am just curious whether I can include an object into function prototype chain. What I mean: var t… Read more Custom Prototype Chain For A Function
How Can Ecmascript Assignmentexpression Production Rule Produce `foo = 42`?

How Can Ecmascript Assignmentexpression Production Rule Produce `foo = 42`?

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As the spec states (yes, 5.1, that's intentional): AssignmentExpression : ConditionalExpre… Read more How Can Ecmascript Assignmentexpression Production Rule Produce `foo = 42`?
Manipulating A Complex Object Based On An Input Array

Manipulating A Complex Object Based On An Input Array

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I have an complex object and based on an input array I need to modify properties inside of this com… Read more Manipulating A Complex Object Based On An Input Array