Active3 years, 5 months ago
× Please fill Font Style, Font Size, Thread Color and Text Line 1 for all the selected locations Customize this product 1 SIZE & COLOR. 3 EMBROIDERY LOCATIONS. Customize one or more locations. Additional Text to Greek Letters. Over Kappa View Colors.
I am new in JavaScript and still learning various things. Right now i'm stuck with adding and removing li elements from the list. I did the exercise just fine using jQuery, but now have difficulties with the pure JS version of the same task.
The main idea is to add a new li element by clicking on the button, and remove the the element by clicking on the X button right next to it. I have tried using 'this' and other advices mentioned in similar questions here on Stackoverflow, but nothing worked for me. Could you, please, guide me what am I doing wrong?
P.S. the adding function seems to be working in snippet, but console logs error: cannot read property 'addeventlistener' of null.
AniAni
3 Answers
This returns a non-live collection:
Which means that it will only contain the objects which exist at the point of the method call. You need to call getElementsByClassName() after the creation of the new li elements, and attach the EventListeners on the invidual buttons. Just remember not to put an EventListener twice on the buttons.
A nicer solution
Better yet: do not use getElementsByClassName(), just attach the event handler directly in the function, in which you create the new button. That way, you don't have to worry about pre-existing event handlers:
meskobalazs
meskobalazs12.6k11 gold badge2424 silver badges4848 bronze badges
In your case, btn is a node list of elements, not an element, so you can't attach an event to an array. You need to iterate through them:
Marcos Pérez Gude
Marcos Pérez Gude18k33 gold badges2929 silver badges5454 bronze badges
I am learning too and this was a good little challenge as a newcomer. Thanks to rlemon for pointing us in the right direction with that article link. I learnt something here.
In case you were interested what I arrived at:https://jsfiddle.net/nyxhj0tg/1/
JS:
Doidgey
Doidgey2,69399 gold badges3838 silver badges7474 bronze badges
Not the answer you're looking for? Browse other questions tagged javascriptappendchildremovechild or ask your own question.
| ITC Avant Garde Gothic Book |
| ITC Avant Garde Gothic Demi |
| ITC Avant Garde Gothic Book Oblique |
| ITC Avant Garde Gothic Demi Oblique |
| Lubalin Package 4 (ITC Avant Garde Part 1-6) |
| Lubalin Package 5 (ITC Avant Garde Part 2-4) |
| ITC Avant Garde Gothic Cyrillic Asian |
| ITC Avant Garde Gothic® Bold |
| ITC Avant Garde Gothic® Book |
| ITC Avant Garde Gothic® Medium |
| ITC Avant Garde Gothic 1 Volume |
| ITC Avant Garde Gothic 2 Volume |
| ITC Avant Garde Gothic® Bold Oblique |
| ITC Avant Garde Gothic® Book Oblique |
| ITC Avant Garde Gothic® Demi Bold |
| ITC Avant Garde Gothic® Extra Light |
| ITC Avant Garde Gothic® Medium Oblique |
| ITC Avant Garde Gothic® Bold |
| ITC Avant Garde Gothic® Book |
| ITC Avant Garde Gothic® Book |
| ITC Avant Garde Gothic® Demi |
| ITC Avant Garde Gothic® Medium |
| ITC Avant Garde Gothic® CE Book |
| ITC Avant Garde Gothic® CE Demi |
| ITC Avant Garde Gothic® CE Book |
| ITC Avant Garde Gothic® ExtraLight |
| ITC Avant Garde Gothic® CE Book Oblique |
| ITC Avant Garde Gothic® ExtraLight Oblique |
| ITC Avant Garde Gothic® Multilingual Book |
| ITC Avant Garde Gothic Selection |
| ITC Avant Garde Gothic® Multilingual Medium |
| ITC Avant Garde Gothic CE Complete Family Pack |
| ITC Avant Garde Gothic® Medium Condensed Oblique |
| ITC Avant Garde Gothic CE Volume |
| ITC Avant Garde Gothic Multilingual Complete Family Pack |
| ITC Avant Garde Gothic Condensed Volume |
| ITC Avant Garde Gothic® Cyrillic Medium Regular |
| ITC Avant Garde Gothic® Multilingual Bold Oblique |
| ITC Avant Garde Gothic® Multilingual Bold Regular |
| ITC Avant Garde Gothic® Multilingual Medium Oblique |
| ITC Avant Garde Gothic Turkish Volume |
| ITC Avant Garde Gothic Western Volume |
| ITC Avant Garde Gothic® Condensed Bold |
| ITC Avant Garde Gothic® Condensed Book |
| ITC Avant Garde Gothic® Condensed Demi |
| ITC Avant Garde Gothic® Cyrillic Book |
| ITC Avant Garde Gothic® Extra Light Oblique |
| ITC Avant Garde Gothic Multilingual Volume |
| ITC Avant Garde Gothic® CE Book Oblique |
| ITC Avant Garde Gothic® CE Demi Oblique |
| ITC Avant Garde Gothic® Condensed Medium |
| ITCAvant Garde Std-Bk Cn Obl |
| ITCAvant Garde Std-Bold Cn |
| ITCAvant Garde Std-Demi Cn |
| ITCAvant Garde Std-Md Cn Obl |
| ITCAvant Garde Std-Md Obl |
| ITCAvant Garde Std-XLt Cn |
| ITC Avant Garde Gothic Cyrillic Volume One |
| ITC Avant Garde Gothic® Bold Oblique |
| ITC Avant Garde Gothic® Book Oblique |
| ITC Avant Garde Gothic® Demi Bold |
| ITC Avant Garde Gothic® Demi Oblique |
| ITC Avant Garde Gothic® Baltic Book |
| ITC Avant Garde Gothic® Book Oblique |
| ITC Avant Garde Gothic® CE Demi Bold |
| ITC Avant Garde Gothic® Medium Oblique |
| ITC Avant Garde Gothic® Turkish Book |
| ITC Avant Garde Gothic Baltic |
| ITC Avant Garde Gothic® Bold Condensed Oblique |
| ITC Avant Garde Gothic® Book Condensed Oblique |
| ITC Avant Garde Gothic® Demi Condensed Oblique |
| ITC Avant Garde Gothic® Extra Light Condensed |
| ITC Avant Garde Gothic® Baltic Book Oblique |
| ITC Avant Garde Gothic® Baltic Demi Bold |
| ITC Avant Garde Gothic® Demi Bold Oblique |
Avant Garde Black Font With White Border Collie
| ITC Avant Garde Gothic® Turkish Demi Bold |
| ITC Avant Garde Gothic Cyrillic Accented |
| ITC Avant Garde Gothic Cyrillic Volume |
| ITC Avant Garde Gothic® CE Demi Bold Oblique |
| ITC Avant Garde Gothic® Cyrillic Bold Regular |
| ITC Avant Garde Gothic® Multilingual Book Oblique |
| ITC Avant Garde Gothic® Multilingual Demi Bold |
| ITC Avant Garde Gothic® Turkish Book Oblique |
| ITC Avant Garde Gothic® Extra Light Condensed Oblique |
Avant Garde Black Font With White Border Designs
| ITC Avant Garde Gothic® Cyrillic Extra Light Regular |
| ITC Avant Garde Gothic Cyrillic Complete Family Pack |
| ITC Avant Garde Gothic® Cyrillic Bold Oblique Regular |
| ITC Avant Garde Gothic® Cyrillic Medium Oblique Regular |
| ITC Avant Garde Gothic® Multilingual Extra Light Regular |
| ITC Avant Garde Gothic® Basic Family Pack |
| ITC Avant Garde Gothic® Cyrillic Demi Bold |
| ITC Avant Garde Gothic® (EF) Bold Alternates |
Avant Garde Font Style
| ITC Avant Garde Gothic® (EF) Book Alternates |
| ITC Avant Garde Gothic® Condensed Bold Oblique |
Free Avant Garde Font Truetype
| ITC Avant Garde Gothic® Condensed Book Oblique |