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Groups > comp.lang.javascript > #35656

Re: Splice array of arrays with objects.

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Den söndag 23 september 2018 kl. 11:01:11 UTC+2 skrev Jonas Thörnvall:
> Den söndag 23 september 2018 kl. 09:28:32 UTC+2 skrev Thomas 'PointedEars' Lahn:
> > JJ wrote:
> > > On Sat, 22 Sep 2018 03:15:18 -0700 (PDT), Jonas Thörnvall wrote:
> > >>> track[tracknr].midiMess.splice({time:clock,data0:message.data[0],data1:message.data[1],data2:message.data[2]});
> > >>>
> > >>> ?
> > >> Uncaught TypeError: Cannot read property 'splice' of undefined
> > >>     at noteInsert (listtrack.js:12)
> > >>     at HTMLButtonElement.onclick (midi.html:133)
> > > 
> > > That's not `splice()` which returns `undefined`. It's the `midiMess` which
> > > is not defined in `track[tracknr]`. Chances are that the `midiMess` property
> > > got reassigned with other value.
> > > 
> > > Try adding a setter function to that property, and make the setter function
> > > raise an exception or issue the `debugger` statement, so that whichever code
> > > modifies it (the property, not the array contents), will be known.
> > 
> > True.  But if “splice” refers to the standard (ECMAScript) method,
> > “Array.prototype.splice”, then it simply does not work this way: the first
> > argument has to be the zero-based *index* where to start modifying an
> > *Array-like* object; i.e., a *Number* value that is *an integer* (and NOT an
> > Object value where the object obviously has no suitable valueOf() method):
> > 
> > <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/splice>
> > 
> > JavaScript 101.
> > 
> > 
> > PointedEars
> > -- 
> > Prototype.js was written by people who don't know javascript for people
> > who don't know javascript. People who don't know javascript are not
> > the best source of advice on designing systems that use javascript.
> >   -- Richard Cornford, cljs, <f806at$ail$1$8300dec7@news.demon.co.uk>
> 
> I've already told you i've solved it you lowIQ idiot.
> track[tracknr].midiMess[trackEvent].splice(0,{time:instime,data0:144,data1:insnote,data2:insvel});

But i also told you that the whole syntax is fucked up.
because the index is a property of the array, not of the object you fucking moron.

track[tracknr].midiMess[trackEvent].splice(0,{time:instime,data0:144,data1:insnote,data2:insvel});

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Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 02:16 -0700
  Re: Splice array of arrays with objects. Julio Di Egidio <julio@diegidio.name> - 2018-09-22 02:45 -0700
    Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:07 -0700
      Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:09 -0700
        Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:15 -0700
          Re: Splice array of arrays with objects. JJ <jj4public@vfemail.net> - 2018-09-23 05:44 +0700
            Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 15:51 -0700
            Re: Splice array of arrays with objects. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-23 09:28 +0200
              Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-23 02:01 -0700
                Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-23 02:03 -0700
      Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:24 -0700
        Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:28 -0700
          Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:43 -0700
        Re: Splice array of arrays with objects. Julio Di Egidio <julio@diegidio.name> - 2018-09-22 03:40 -0700
          Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 03:47 -0700
            Re: Splice array of arrays with objects. Julio Di Egidio <julio@diegidio.name> - 2018-09-22 04:00 -0700
              Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 04:02 -0700
              Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 04:03 -0700
                Re: Splice array of arrays with objects. Julio Di Egidio <julio@diegidio.name> - 2018-09-22 04:09 -0700
                Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 04:21 -0700
                Re: Splice array of arrays with objects. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-09-22 16:17 +0200
                Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 09:30 -0700
                Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 04:45 -0700
              Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 04:16 -0700
          Re: Splice array of arrays with objects. Jonas Thörnvall <jonas.thornvall@gmail.com> - 2018-09-22 04:00 -0700

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