declare « Array « Javascript Data Type Q&A

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Javascript Data Type Q&A » Array » declare

1. What’s the difference between "Array()" and "[]" while declaring a JavaScript array? stackoverflow.com

Whats the real difference between declaring an array like this:

var myArray = new Array();

and

var myArray = [];

2. use of javascript array new Array(n) declaration stackoverflow.com

Basic javascript question - Since there is no hard limit for arrays as the case with Java (i.e. indexoutofbounds exception), what is the use of the declaration where we specify the ...

3. how do I declare typed arrays in Safari? (JavaScript) stackoverflow.com

var ui8a = new Uint8Array();

fails for me in Safari 5.0.5 (7533.21.1) with an error message of

ReferenceError: Can't find variable: Uint8Array

printed to console. But Web searches seem to indicate that

4. What happens if you declare an array without New in Javascript? stackoverflow.com

Possible Duplicate:
What's the difference between Array(1) and new Array(1) in JavaScript?

In javascript, how are these two different?

var arr = Array();  
var arr2 = ...

5. Javascript array declaration: new Array(), new Array(3), ['a', 'b', 'c'] create arrays that behave quite differently stackoverflow.com

Consider this example Javascript code:

a = new Array();
a['a1']='foo';
a['a2']='bar';

b = new Array(2);
b['b1']='foo';
b['b2']='bar';

c=['c1','c2','c3'];

console.log(a);
console.log(b);
console.log(c);

Results in the Firebug console are as follows: For a (the '[]' had to be expanded by clicking on the '+' button):

[] ...

6. help declaring/using array of arrays codingforums.com

Hi I need a bit of javascript help with an array please. just don't seem to have the correct syntax. (the "code" below is pseudo code, just to get the idea across) Here's what I currently have: var bill = new array[20]; var sam = new array[20]; var nancy = new array[20]; var Oscar = new array[20]; I'm assigning objects to ...

7. Compliant way of Declaring Arrays codingforums.com

I have a problem with my code that seems to be...confusing to say the least. i'm trying to sent the contents of an array to a variable (in a for..next loop). The problem is, when i try to access that Array, the Error Console says: "Coord[x] is undefined" however, i know that it is defined. Am i declaring the variable in ...

8. array declaration not working in firefox bytes.com

9. Best way to declare array? forums.devshed.com

If you work often with JSON you might find using literal array declarations more comfortable but apart from some advantages which literal arrays have during declaration there is no real difference in how you use both normal and literal arrays. I personally like using literal array declarations because I code most of my JS code with JavaScript literal notation however I ...

10. Array declaration works in Firefox not in IE nor Safari forums.devshed.com

function add_drug(a, b) { var class = new Array(); var x = document.getElementById(a); var a; a = a.substr(-1, 1); x = x.options[x.selectedIndex].text; var y = document.getElementById(b); class['anxiety'] = new Array('','Xanax','Buspar','Valium','Ativan'); class['constipation'] = new Array('Bisacodyl Suppositories','Colace','Increase Fiber in Diet','Increase Water in Diet','MOM','Psyllium','Miralax','Lactulose'); class['depression'] = new Array('','Elavil','Effexor','Prozac','Paxil','Zoloft','Celexa','Luvox'); class['dry_mouth'] = new Array('','Drinking Extra Fluids','Bipap','Hard Candy/Lozenges','Humidifier'); class['fasciculations'] = new Array('','Baclofen','Gabapentin','Quinine Sulfate','Lidoderm'); class['fatigue'] = new Array('','Rest ...