javascript - querySelectorAll On Multiple Classes Not Working -


i'm trying display multiple clocks on same page. however, queryselectorall doesn't seem doing it. i'm using modern browsers (have tested in chrome , safari). doing wrong?

js code:

/*global document, window */ function checktime(i) {     'use strict';     if (i < 10) {         = "0" + i;     }     return i; } function a() {     'use strict';     var oct = ["0", "1", "2", "3", "4", "5", "6", "7"],         octtime,         oct1,         oct2,         oct3,         oct4,         oct5,         oct6,         octvalue,         point = ".",         = new date(),         hours = now.gethours(),         minutes = now.getminutes(),         seconds = now.getseconds(),         h = checktime(hours),         m = checktime(minutes),         s = checktime(seconds),         totsecs = [hours * 3600 + minutes * 60 + seconds + (now.gettime() % 1000) / 1000];     octtime = math.floor(totsecs / (86400 / 262144));     oct1 = math.floor(octtime / 32768);     octtime -= 32768 * oct1;     oct2 = math.floor(octtime / 4096);     octtime -= 4096 * oct2;     oct3 = math.floor(octtime / 512);     octtime -= 512 * oct3;     oct4 = math.floor(octtime / 64);     octtime -= 64 * oct4;     oct5 = math.floor(octtime / 8);     octtime -= 8 * oct5;     oct6 = octtime;     octvalue = point + oct[oct1] + oct[oct2] + oct[oct3] + oct[oct4] + oct[oct5] + oct[oct6];     document.queryselectorall(".c").innerhtml = h + ":" + m + ":" + s;     document.queryselectorall(".d").innerhtml = octvalue;     window.settimeout(a); } window.onload = a;

html code:

<div class="a"> <table> <tr> <td><b>regular time</b> <td><b>octal time</b> <tr> <td class="c">js problem <td class="d">js problem </table> </div> <br> <div class="a"> <table> <tr> <td><b>regular time</b> <td><b>octal time</b> <tr> <td class="c">js problem <td class="d">js problem </table> </div> <script src="/1.js"></script>

test page: http://www.gloryhood.com/ztest.html

it because queryselectorall returns nodelist not single node element, need iterate , set value

function sethtmlforbyclass(clazz, html) {     var nodes = document.queryselectorall('.' + clazz)     (var = 0; < nodes.length; i++) {         nodes[i].innerhtml = html;     } } sethtmlforbyclass('c', h + ":" + m + ":" + s); sethtmlforbyclass('d', octvalue);

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