Javascript Array, find and combine entries with duplicate values

Question

I have the following dynamically generated array:

var myArray = ("0% { left:74px; top:202px; }"   , "44% { left:427px; top:122px; }", "0% { font-size:11px; }", "55% { font-size:49px; }" );

There are 2 entries that have the same start value: 0%. How can I find this and combine it together:

form:
0% { left:74px; top:202px; },
0% { font-size:11px; },
to
0% { left:74px; top:202px; font-size:11px;},

Thank you

Edited the code to a valid array.

there was a point between 55 and {. I had removed that. the array should be valid — Mircea
– Mircea, Commented Sep 25, 2010 at 11:21
What's that XX % thing? Is that some of animation or something? — Johannes Schaub - litb
– Johannes Schaub - litb, Commented Sep 25, 2010 at 12:20

AutoSponge · Accepted Answer · 2010-09-25 12:56:14Z

2

That is an array literal with only one member. You need to end the strings between the commas to separate the members. I would try to rewrite each member as an object literal and use json methods to alternate between string and object. In object form, you can do a mixin to merge the like members.

answered Sep 25, 2010 at 12:56

AutoSponge

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Comments

Yevgeny Simkin · Accepted Answer · 2010-09-25 21:08:07Z

1

oh, I see.. you're printing your array and this is what you're getting, right?

In that case...

for(var i =0; i< myArray.length ; i++){
  for(var j=i+1; j<myArray.length;j++){
      if(i == j) continue;
      if(myArray[i].substring(0,3) == myArray[j].substring(0,3)){//found matching first 2 chars
         myArray[i] = myArray[i].substring(0,3) + myArray[j].replace(/\{(.*?)\}/,"$1 ;") + myArray[i].substring(4);

        myArray.splice(j--,1);//remove the doup and decrease the counter so you don't skip one now that the array is shorter

      }
  }
}

I didn't test this, but something to this effect :)

Oh.. you edited. What you have now is definitely not an array... but you're closer than you were before.

I think array is a reserved word...

var myArray = ("0% { left:74px; top:202px; }"   , "44% { left:427px; top:122px; }", "etc", "etc" );

edited Sep 25, 2010 at 21:08

answered Sep 25, 2010 at 12:59

Yevgeny Simkin

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2 Comments

Mircea Over a year ago

Sorry, the code have an error. I can't tell why... I can make my array like this: var myArray = ("0% { left:74px; top:202px; }", "44% { left:427px; top:122px; }", "etc", "etc" );

Yevgeny Simkin Over a year ago

my code might have bugs, but it's what you should do in theory... first make your array look right (as I show at the bottom of my answer). Then loop through the array looking for matches on the first few characters and merge them together and then splice out the duplicate.

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