Console. Log Not Working at All
A Bunch of Code Isn't Working and I'm Trying to Identify Where the Problem Lies but Console. Log() Isn't Logging Any Results in Chrome Dev Tools, Am I Doing It...
A bunch of code isn't working and I'm trying to identify where the problem lies but console.log() isn't logging any results in Chrome Dev tools, am I doing it correctly?
$(window).scroll(function() {
$('section').each(function(){
var id='#'+$(this).attr('id'),
off=$(id).offset().top,
hei=$(id).height(),
winscroll=$(window).scrollTop(),
dif=hei+off-($(window).height());
if (winscroll >= off && winscroll<=dif) {
console.log('first broken');
$(id+' .sticky').removeClass('abs').addClass('fix');
} else if (winscroll > dif){
console.log('second broken');
$(id+' .sticky').removeClass('fix').addClass('abs');
} else {
console.log('third broken');
$(id+' .sticky').removeClass('fix abs');
} });
});
EDIT FULL CODE ADDED
$(document).ready(function() {
// If a browser supports 3D transforms use the fancy menu if it doesn't, use standard accordion menu instead
if($('html').hasClass('csstransforms3d')){
$( "#mp-menu" ).removeClass( "snap-drawers" ).addClass( "mp-menu" );
$('nav ul li ul').css('border-bottom','1px solid rgba(255, 255, 255, .05)');
$('nav ul li ul').css('background','none');
// Insert elements where necessary to create the right structure
$('#mp-menu').wrapInner('<div class="mp-level" />');
$('#mp-menu').find('li > ul').wrap('<div class="mp-level" />');
$("#mp-menu ul li .mp-level").prepend(function () {
return '<span class="menu-title">' + $(this).prev().text() + '</span> <a class="ico mp-back" href="#">Back</a>';
});
// load in necessary JS files
$.getScript(');
} else {
// load in necessary JS files
$.getScript( "", function() {
$("#demo1").navgoco({accordion: true});
});
$.getScript( "", function() {
// Snapper settings
var snapper = new Snap({
element: document.getElementById('scroller'),
disable: 'right',
maxPosition: 291
});
var addEvent = function addEvent(element, eventName, func) {
if (element.addEventListener) {
return element.addEventListener(eventName, func, false);
} else if (element.attachEvent) {
return element.attachEvent("on" + eventName, func);
}
};
// Toggle button
addEvent(document.getElementById('trigger'), 'click', function(){
if( snapper.state().state=="left" ){
snapper.close();
$( ".menu-trigger" ).removeClass( "active" );
} else {
snapper.open('left');
$( ".menu-trigger" ).addClass( "active" );
}
});
addEvent(document.getElementById('scroller'), 'click', function(){
if( snapper.state().state=="left" ){
$( ".menu-trigger" ).removeClass( "active" );
}
});
/* Prevent Safari opening links when viewing as a Mobile App */
(function (a, b, c) {
if(c in b && b[c]) {
var d, e = a.location,
f = /^(a|html)$/i;
a.addEventListener("click", function (a) {
d = a.target;
while(!f.test(d.nodeName)) d = d.parentNode;
"href" in d && (d.href.indexOf("http") || ~d.href.indexOf(e.host)) && (a.preventDefault(), e.href = d.href)
}, !1)
}
})(document, window.navigator, "standalone");
});
} // end if
fitHeight();
$(window).scroll(function() {
$('section').each(function(){
var id='#'+$(this).attr('id'),
off=$(id).offset().top,
hei=$(id).height(),
winscroll=$(window).scrollTop(),
dif=hei+off-($(window).height());
console.log('msj');
if (winscroll >= off && winscroll<=dif) {
$(id+' .sticky').removeClass('abs').addClass('fix');
} else if (winscroll > dif){
$(id+' .sticky').removeClass('fix').addClass('abs');
} else {
$(id+' .sticky').removeClass('fix abs');
}
});
});
});
// Trigger FitHeight on browser resize
$(window).resize(fitHeight);
EDIT
Some bits of the full code (above) refer to other JS files and code returns no errors when run with these files present. After troubleshooting I see the console message before the scroll function but I do not see the console message within the scroll function.
fitHeight();
console.log('About to bind scroll effects'); // I SEE THIS MESSAGE
$(window).scroll(function() {
console.log("scroll bound, now loop through sections"); //BUT NOT THIS ONE
$('section').each(function(){
14 Answers
In my case, all console messages were not showing because I had left a string in the "filter" textbox.
Remove the filter it by clicking the X as shown:
Sounds like you've either hidden JavaScript logs or specified that you only want to see Errors or Warnings. Open Chrome's Developer Tools and go to the Console tab. At the bottom you want to ensure that JavaScript is ticked and also ensure that you have "All", "Logs" or "Debug" selected.
In the image above I have JavaScript, Network, Logging, CSS and Other ticked and "All" selected.
Another potential problem could be that your $(window).scroll() function isn't wrapped within a .ready() function (as documented here):
$(document).ready(function() {
$(window).scroll(function() {
...
});
});
When pasting your code into JSFiddle and giving some dummy content, your code works perfectly fine: JSFiddle demo.
Must Read
Edit:
The question was edited. The new code given throws two errors:
Uncaught ReferenceError: fitHeight is not defined Uncaught TypeError: Cannot read property 'addEventListener' of null
Because of this, the code stops execution prior to reaching any console.log call.
I feel a bit stupid on this but let this be a lesson to everyone...Make sure you target the right selector!
Basically the console wasn't logging anything because this particular code snippet was attempting to grab the scrolling area of my window, when in fact my code was setup differently to scroll an entire DIV instead. As soon as I changed:
$(window).scroll(function() {
to this:
$('#scroller').scroll(function() {
The console started logging the correct messages.
Click on the restore button. console.log will start to work.
In my case I was developing a Polymer WebComponent, which is included using <link rel="import"> into the main HTML document. Turns out that the WebComponent HTML file was being cached for some reason, even though I had changed it since the cached version.
To solve it I opened the Developer Console (in Chrome), right clicked on the reload arrow next to the URL bar and selected "Empty cache and hard reload" - problem solved.
It was because I had turned off "Logs" in the list of boxes earlier.
2021 solution
- open developer tools
- navigate to "console"
- most likely "Verbose" is not ticked, so activate it
Just you need to select right option to show the log messages from the option provided in left side under the console tab. You can refer the screen shot.
I just had a same issue of none of my console message showing. It was simply because I was using the new Edge (Chromium based) browser on Windows 10. It does not show my console messages whereas Chrome does. I guessed it was an issue with Edge because I had another odd issue with Edge because it treated strings with single quotes and double quotes differently.
Somewhere console.log had been overridden in a js file somewhere (that I haven't been able to locate).
But I could test by putting console.log in the console and I only got an empty function: f{}
I added this to the top of my own js file to correct it (absolute hack, but worked for me):
var console = window.console;
Consider a more pragmatic approach to the question of "doing it correctly".
console.log("about to bind scroll fx");
$(window).scroll(function() {
console.log("scroll bound, loop through div's");
$('div').each(function(){
If both of those logs output correctly, then its likely the problem exists in your var declaration. To debug that, consider breaking it out into several lines:
var id='#'+$(this).attr('id');
console.log(id);
var off=$(id).offset().top;
var hei=$(id).height();
var winscroll=$(window).scrollTop();
var dif=hei+off-($(window).height());
By doing this, at least during debugging, you may find that the var id is undefined, causing errors throughout the rest of the code. Is it possible some of your div tags do not have id's?
As a complete new at javascript, I just had the same problem on my side here. The mistake I did, was that I used:
<script type="text.javascript">
console.log("bla bla bla");
</script>
instead of:
<script>
console.log("bla bla bla");
</script>
using the
type="text.javascript"
had the result of not producing the log in the console.
In my case it was caused by console.groupCollapsed().
And collapsed messages don't get detected by ctrl+f apparently.
Maintaining unfamiliar code is scary sometimes...
It even collapsed the exception message, absence of which made me put those console.logs in the first place ^_^
if using $ parameter in console.log within html, then single quotes(') and double quotes("") will not work.
use quotes like (` `)
example: console.log(`${address}`);
This will help when using the $ parameter and anyone facing issues in console.log.
Elena Rostova holds a Master's degree in Public Health Journalism. She covers groundbreaking medical research, holistic wellness trends, mental health awareness, and nutritional science.
