javascript - Jquery having trouble positioning images -

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javascript wait image load before calling ajax

function initresources() {      var newimage;     (i = 0; < resourcedata.length; i++) {          // create image         newimage = $('<img alt="big" id="imga' + + '" class="mediaimg" width="' + math.round(resourcedata[i][2] * currentscale) + '" height="' + math.round(resourcedata[i][3] * currentscale) + '" />');          newimage.load(function() {              alert(i);              // position             $('#imga' + i).position().top(math.round(resourcedata[i][5] * currentscale));             $('#imga' + i).position().left(math.round(resourcedata[i][4] * currentscale));          });         newimage[0].src = uploadfolder + '/' + imgdata[resourcedata[i][1]][1];         $('#thepage').append(newimage);     } }

i have array of images. when page loaded server, function loops through images , places them on page.

this function called when scale of page changes. scaling function clears html , redraws scale multiplier.

the problem function, alerts resourcedata.length, end of loop. need somehow pass data load function, when image load, referencing correct id/i.

you have single i variable shared among of callbacks.

since callbacks execute asynchronously, execute after loop finishes, when i length.

you need put loop body separate function takes i parameter.
way, each load callback use separate i variable (the function parameter), never change.


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