javascript - Cannot Set Property ... of undefined --- bizarre -

-

i'm getting bizarre error in chrome... check out screenshot below.

i define record using object literal syntax.

i try setting "id" property , exception.

i've tried both :

record['id'] = 'wtf';

and also

record.id = 'wtf';

i use type of syntax on place in script.... going on here ? bug in chrome ?

alt text

edit : i've solved problem now, i'm still not sure why happening. moved definition of record occur outside of if block. know occurring ? thought variable declarations scoped function , therefore shouldn't issue.

the problem dl less or equal zero, statement initializes record doesn't executed. indentation, looks intended both statements part of if block, no braces, record['id'] = 'wtf'; statement gets executed no matter what.

by moving variable initialization outside if statement, forced happen in case , moved assignment inside if block (which, i'm assuming wanted).

probably better way solve adding braces this:

if (dl > 0) {     var record = {};      record.id = 'wtf'; }

unless want initialize record in both cases.

you correct variable declarations being scoped function, assignment doesn't happen until point in code. record in scope, still had default value of undefined because hadn't assigned yet.


Comments

Post a Comment

Popular posts from this blog

android - Spacing between the stars of a rating bar? -

-
ho can set spacing beween stars? thats ratingbar: ratingbar = (ratingbar) inflater.inflate(r.layout.ratingbar, null); ratingbar.setlayoutparams(new layoutparams(layoutparams.wrap_content, layoutparams.wrap_content)); the layout: <?xml version="1.0" encoding="utf-8"?> <ratingbar xmlns:android="http://schemas.android.com/apk/res/android" style="@style/mystyle" android:layout_alignparentright="true" android:layout_height="19dp" android:layout_width="wrap_content" android:numstars="5"> </ratingbar> the style: <style name="mystyle" parent="@android:style/widget.ratingbar"> <item name="android:progressdrawable">@drawable/android_r2_ratingstar_yellow</item> <item name="android:indeterminatedrawable">@drawable/android_r2_ratingstar_grey</item> </style> thanks, cheers you have ...
Read more

c# - How to execute a particular part of code asynchronously in a class -

-
i creating speech recognition engine that's going respond user commands.i have created button enable , disable speech recognition per user convenience.i have used dispose() of speech engine disable speech recoginition.here code private void button1_click(object sender, routedeventargs e) { engineon = !engineon; if (engineon) { speechengine = speech.createspeechengine(); //speech class creates , returns new speech engine. speechengine.audiolevelupdated += new eventhandler<audiolevelupdatedeventargs>(speechengine_audiolevelupdated); // use system's default microphone speechengine.setinputtodefaultaudiodevice(); speechengine.loadgrammar(new dictationgrammar()); // start listening speechengine.recognizeasync(recognizemode.multiple); } else { speechclass.myengine.dispose(); } } but disposal of speech obj...
Read more

c# - Asterisk click to call -

-
maybe of may know how achieve this. want this: click on link/button my phone rings, pick asterisk dials number me recipient phone rings i'm using asterisk 1.2 . i tried dial out . can make call 1 side. thanks in advance. you can use call files . read: asterisk auto-dial out . i have made simple cgi script called via web server creates call file (remember use temp directory) , moves /var/spool/asterisk/outgoing , asterisk rest of work. user perspective works described. remember normalize phone numbers (on web pages can have spaces, hyphens etc, while in call file must dialable numbers).
Read more