javascript - Undefined Variable In document.write -


i keep getting "toggleonlyrelatedposts not defined " in chrome console , script doesn't work. i'm working on script , i've gotten lost after adding many variables. i'm not @ sort of thing , me looks defined, guess it's not. chrome marks error @ document.write

here script:

<script type="text/javascript">     //<![cdata[     function postgrabber(json) {              // magic             (var = 0; < json.feed.entry.length; i++) {                 (var j = 0; j < json.feed.entry[i].link.length; j++) {                     if (json.feed.entry[i].link[j].rel == 'alternate') {                         var posturl = json.feed.entry[i].link[j].href;                         break;                     }                 }              // thumbnail stuff             var orgimgurl = json.feed.entry[i].media$thumbnail.url ? json.feed.entry[i].media$thumbnail.url : 'http://1.bp.blogspot.com/-mxinhrjwpbo/vd6fqbvi74i/aaaaaaaacn8/lsluldeorog/s72-c/noimage-chalkboard.jpg';             var newimgurl = orgimgurl.replace('s72-c', 's' + imgsize + '-c');             var imgtag = '<a class="item-link-post" href="' + posturl + '"><img class="item-img-thumbnail" src="' + newimgurl + '" width="' + imgsize + '" height="' + imgsize + '"/></a>';              var authorname = json.feed.entry[i].author[0].name.$t;             var authorurl = json.feed.entry[i].author[0].uri.$t;             var authororiimgurl = json.feed.entry[i].author[0].gd$image.src;             var authornewimgurl = authororiimgurl.replace('s512-c', 's' + authorimgsize + '-c');             var authorimgtag = '<a class="item-link-author" href="' + authorurl + '" target="_blank" rel="nofollow"><img class="item-img-author" src="' + authornewimgurl + '" alt="' + authorname + '"/></a>';              var postlabel = json.feed.category[i].term;             var postlabelurl = '/-/' + postlabel + '';              // standard stuff             var posttitle = json.feed.entry[i].title.$t;             var postcommentcount = json.feed.entry[i].thr$total.$t;              var postsummary = json.feed.entry[i].summary.$t;             var entryshort = postsummary.substring(0, '' + summarylength + '');             var entryend = entryshort.lastindexof(" ");             var postcontent = entryshort.substring(0, entryend) + '...';              var postdate = json.feed.entry[i].updated.$t ? json.feed.entry[i].updated.$t : json.feed.entry[i].published.$t;             var shortdate = postdate.substring(0,10);              // let's make options here             var toggleimg = showimg ? '' + imgtag + '' : '';             var toggletitle = showtitle ? '<h1 class="item-title">' + posttitle + '</h1>' : '';             var togglesummary = showsummary ? '<p class="item-snippet">' + postcontent + '</p>' : '';             var toggledate = showdate ? '<span class="item-date">' + shortdate + '</span>' : '';             var toggleauthorimg = showauthorimg ? '' + authorimgtag + '' : '';             var togglecommentcount = showcommentcount ? '<span class="item-comment-count">' + postcommentcount + '</span>' : '';               var toggleonlyrelatedposts = showonlyrelatedposts ? '' + postlabelurl + '' : '';              // output             var itempost = '<div class="item-post"><div class="item-imgs">' + toggleimg + toggleauthorimg + '</div>' + togglecommentcount + '<a class="item-link" href=' + posturl + '>' + toggletitle + '</a>' + togglesummary + toggledate + '</div>';              // let's write down             document.write(itempost);         }     }     //]]> </script> <script type="text/javascript">     //<![cdata[     var imgsize = 96;     var summarylength = 142;     var authorimgsize = 36;     var showimg = true;      var showtitle = true;      var showsummary = true;      var showdate = true;     var showauthorimg = true;     var showcommentcount = true;     var showonlyrelatedposts = true;     document.write('<script type="text/javascript" src="/feeds/posts/summary' + toggleonlyrelatedposts + '?orderby=published&amp;max-results=5&amp;alt=json-in-script&amp;callback=postgrabber"><\/script>');     //]]> </script> 

the variable toggleonlyrelatedposts declared in scope of function postgrabber. therefore indeed undefined in line document.write, try use it.

if wish use variables outside function have declare them outside function.

read on concept of 'scope', it's pretty fundamental knowledge in programming language.


Comments

Popular posts from this blog

python - mat is not a numerical tuple : openCV error -

c# - MSAA finds controls UI Automation doesn't -

wordpress - .htaccess: RewriteRule: bad flag delimiters -