Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.javascript > #37955

Re: object giving errors

Show all headers | View raw

Andrew Poulos wrote:

> Why is it that when I do this
> 
> function pos() {
>    return { "top": 10, "left": l20 };
> }
> 
> or this
> 
> function pos() {
>    let o = { "top": 10, "left": l20 };
>    return o;
> }
> 
> I get "Uncaught ReferenceError: l20 is not defined".
> 
> But when I do it like this
> 
> function pos() {
>    let o = {};
>    o.top = 10;
>    o.left = 120;
>    return o;
> }
> 
> I get no errors?

The first code snippet contains a reference to the variable with identifier 
(in words) “‘U+006C Latin Small Letter L’, followed by ‘U+0032 Digit Two’, 
followed by ‘U+0030 Digit Zero’”; the second one contains the decimal 
numeric literal (in words) “one hundred twenty” (i.e. “U+0031 Digit One”, 
followed by “U+0032 Digit Two”, followed by “U+0030 Digit Zero”).

Using an *unambiguous* *monospace* font like “DejaVu Sans Mono” (free 
software), “Bitstream Vera Mono” (Open Source) or “Consolas” (proprietary; 
de Groot/Microsoft), and an editor supporting code completion, like 
Atom(.io), and a code checker like ESLint(.org), for software development, 
helps to avoid such problems.

-- 
PointedEars
FAQ: <http://PointedEars.de/faq> | <http://PointedEars.de/es-matrix>
<https://github.com/PointedEars> | <http://PointedEars.de/wsvn/>
Twitter: @PointedEars2 | Please do not cc me./Bitte keine Kopien per E-Mail.

Back to comp.lang.javascript | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

object giving errors Andrew Poulos <ap_prog@hotmail.com> - 2019-12-12 19:20 +1100
  Re: object giving errors Julio Di Egidio <julio@diegidio.name> - 2019-12-12 00:31 -0800
    Re: object giving errors Andrew Poulos <ap_prog@hotmail.com> - 2019-12-12 20:36 +1100
  Re: object giving errors Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2019-12-12 10:11 +0100
    Re: object giving errors Andrew Poulos <ap_prog@hotmail.com> - 2019-12-12 20:38 +1100
      Re: object giving errors Julio Di Egidio <julio@diegidio.name> - 2019-12-12 02:21 -0800
  Re: object giving errors "R.Wieser" <address@not.available> - 2019-12-14 17:24 +0100

csiph-web