Var Statement In Doug Crockford's Scheme Functions Translations

Mar 2, 2011

I'm looking at Doug Crockford's Javascript translations of Scheme functions at:[url]

I'm really confused by the variable declaration:

There's no quotes around the value, so what is it?

I played around with it in the console of my Chrome developer tools

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Help With 'return' Statement In Functions

Feb 4, 2006

I have the following script:

function myFunc() {
// some code to do with AJAX
http_request.onreadystatechange = function() {
// do some things
return "a string";
}

}

alert(myFunc());

However, when I return "a string"; I want that string to be returned by myFunc() (and therefore alert'ed). What seems to be happening is that the string is being returned by the http_request.onreadystatechange = function() { } function, and myFunc() just returns false. How can I make the string be returned by myFunc()?

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Jun 20, 2011

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Code:
$(function() {
$("#nav ul#menu li span.active").css("opacity","1");
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It's the part of the code beneath the comment CONDITIONALS BELOW that I want to be able to only trigger it if span is not set to class .active.

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Apr 4, 2011

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Code:
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Aug 20, 2009

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The following code is one of the functions 'frequencyWrapperOne' that has been wrapped in the function 'testWrapper'. A call to testWrapper does nothing.

function testWrapper()
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function frequencyWrapperOne()
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all the other forms are not working. all have the same structure:

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I don't know what is happening only one for work all the others don't.

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I am reading the ECMAScript specs trying to figure out if the next
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I think the above code may only be legal as an expression and not as a
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Douglas Crockford's JSLint will choke on the above line of code and
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The time I have used a line like the above is when the constructor has
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Jul 23, 2007

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Now, how do I write the code for this to occur? I know how to get the function to fire based on clicking a submit button, but not sure how to do it simply based on a number keyed into the one field. Is this possible and if so, how?

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I remember using if statements with null in it. For example, at one
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i have the following:

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What is the purpose of with statement in JS?

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could it not be just written like this:

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