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POAccessing particular instance of variable from for loop ( scope issue?)
 

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  1. POAccessing particular instance of variable from for loop ( scope issue?)
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    <p>Pretty new to any kind of programming, so sorry if this is a mess! I have a chloropleth map where the colors are determined by a slider, and that's working fine. BUT, I need to display the value that gets used to determine the color in a text field when each specific shape on the map is clicked - and have that still update when the slider is used. </p> <p>I can get it to calc properly for the area inside the click, but then it doesn't update with slide, so i think i need it outside the click, and then just some show/hide on click. But outside of the click, I have no "this" to reference and can't get at the iteration I need. I've been trying every possible thing I come across, and am now totally lost. </p> <p>Couldn't thank you enough for any help/explanation.</p> <p>What I've got is:</p> <pre><code>function fromslide(){ // Set properties for each county. for (var i=0; i &lt; counties.length; i++) { ctys = counties[i]; //console.log (ctys); var id = ctys.data("id"); alloc= ((parseInt(Landvar[id].val) * landweight) + (parseInt(Popvar[id].val) * popweight) + (parseInt(Poorvar[id].val) * poorweight)); console.log(alloc); // Set county color. ctys.attr({ fill: getColor(alloc/ 1000000), }); //console.log (selectedcnty); console.log (window.selectedcnty); //this is what's not working if (selectedcnty = String(id)) { thisalloc = ((parseInt(Landvar[id].val) * landweight) + (parseInt(Popvar[id].val) * popweight) + (parseInt(Poorvar[id].val) * poorweight));} $("#allocfield").val(thisalloc); ctys.click(function() { for (var i=0; i &lt; counties.length; i++) { var ctys = counties[i]; var id = ctys.data("id"); ctys.attr({stroke: "#fff" }); }; this.toFront(); this.attr({stroke: "orange" }); var name = this.data("id"); $("#namefield").val( Popvar[name].name); $("#popfield").val( Popvar[name].val); $("#landfield").val( Landvar[name].val); $("#poorfield").val( Poorvar[name].val); console.log(thisalloc); window.selectedcnty = name; console.log (window.selectedcnty); }); </code></pre>
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      1. POAccessing particular instance of variable from for loop ( scope issue?)
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    1. COCould you clarify your question a bit more? What variable/data are you trying to access outside of the click?
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    2. COyes! sorry if I wan't clear. alloc sets the colors for each area on the map based on the slider values. I want to display that for an individual county on click, but still have the # update as the slider is used. So, I was trying to get the name of the county globally from within the click with window.selectedcnty=name, and use it to match with the ID to create "thisalloc" (to go in the text field). Don't know if that route necessary. alloc in console logs for each shape, I just can't get at the chosen one.
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