don't get return associative array in javascript

Question

When i create associate array in javascript, i got a problem like that. I want to get the value by using field name as key, but i just only got undefined. What should i do to get value by key or which way is good approach for it.

Here is my code

function getFields(pVal){
    var tmpObj = {};
    str = pVal.split(",");
    for(i=0;i<str.length;i++){
        tmpVal = str[i].split(":");
        tmpObj[tmpVal[0]] = tmpVal[1];  
    }
    return tmpObj;
}

function JustTest(){
   var fields = {}; 
   fields = getFields("'Code':'PRJ001','Name':'Project 01'");
   alert(fields['Code']);
}

Where is this string from? It looks like it should be JSON. — Aesthete
– Aesthete, Commented Aug 9, 2012 at 11:23

xdazz · Accepted Answer · 2012-08-09 11:08:53Z

4

Because the key is 'Code', not Code, note the single quote ', you need do alert(fields["'Code'"]);

PS: Please add ; at the end of statement, it is bad practice to omit them.

answered Aug 9, 2012 at 11:08

xdazz

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3 Comments

Matt Esch Over a year ago

semicolons are optional

Esailija Over a year ago

prefixed semicolons are semicolons, so they are not optional.

cnk Over a year ago

when i create static object by using single code. i can retrieve value. in dynamically, i can not get the value. may i know about the difference.

Ankur Ghelani · Accepted Answer · 2012-08-09 11:24:08Z

0

I have re-factor the code, just try this:

function getFields(pVal) {
    var tmpObj = {};
    var str = pVal.split(",");
    for (var i = 0; i < str.length; i++) {
        var tmpVal = str[i].split(":");
        tmpObj[tmpVal[0]] = tmpVal[1];
    }
    return tmpObj;
}

function JustTest() {
    var fields = { };
    fields = getFields("'Code':'PRJ001','Name':'Project 01'");
    alert(fields["'Code'"]);
}

if you have question please comment below about code, thanks

edited Aug 9, 2012 at 11:24

answered Aug 9, 2012 at 11:17

Ankur Ghelani

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1 Comment

cnk Over a year ago

i remove the single quote from parameters. because i can use 2 ways [fields['Code'] and fields.Code]

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