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Possible Duplicate:
How to create object property from variable value in javascript?

OK - this is a tough on for me. I am looping through all of my classes="data" using jQuery. I then want to assign properties to my feature using each specific "dataName" and "dataValue". However, once complete, I only have a a propery of "dataName=(the last value looped)". How can I assign my dataName variable to create a new property each time - instead of thinking I only want to create a property named "dataValue"

function pushAttributesintoFeature(feature) {  
  $(".data").each( function(){
    var dataName = $(this).attr("name")
    var dataValue = $(this).val()   
    feature.dataName = dataValue
  })
}

Example: 

<input class="data" name="radius" value="15">
<input class="data" name="height" value="5">

Once I execute the script, I am left with: feature.dataName = "5" But I want: feature.radius="15" AND feature.height = "5"

Community
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Kyle
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3 Answers3

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You can use the square bracket syntax to access a property with a variable:

feature[dataName] = dataValue;

This will set a property whose identifier is the value of dataName, rather than the literal string "dataName".

James Allardice
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0

You can write your code like this:

feature[$(this).attr("name")] = $(this).val()
gabitzish
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0

Use this sintax for setting the values:

function pushAttributesintoFeature(feature) {  
  $(".data").each( function(){
    var dataName = $(this).attr("name")
    var dataValue = $(this).val()   
    feature[dataName] = dataValue;
  })
}
VMAtm
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  • "Syntax like this... is equivalent to this"... no it's not, that's the whole point! Did you miss the quotes around `dataName` in the first example? That would make them equivalent. – James Allardice Dec 20 '12 at 13:59
  • @James Allardice You've misunderstand my answer. But I've edited it to avoid future misuderstandings. – VMAtm Dec 20 '12 at 18:04