This question already has answers here:
What do querySelectorAll and getElementsBy* methods return?
(12 answers)
Closed 4 years ago.
My Code is:
document.getElementsByName("username").value = "DUBISTFAKE"
does not work pls help me im new to Js.
Try this.
document.getElementsByName('username')[0].value = 'DUBISTFAKE'
Related
This question already has answers here:
What do querySelectorAll and getElementsBy* methods return?
(12 answers)
Want to add "addEventListener" on multiple elements with same class [duplicate]
(3 answers)
Closed 1 year ago.
I'm trying to add a eventlistener to a class but it's not working at all, I have done the same method with ID's and it worked perfectly but it's not working for classes. I'm still kinda new to Javascript so I apologize if it's something very simple.
const boxes = document.getElementsByClassName('box_img');
boxes.addEventListener("click", function(){
console.log('Hi');
});
This question already has answers here:
What is the (function() { } )() construct in JavaScript?
(28 answers)
What does this symbol mean in JavaScript?
(1 answer)
Closed 2 years ago.
I know, similar questions have been asked but none answered my question of What does the second () mean?
And also no the syntax is not (function...) rather its just function(a,d){...}(Jquery,...);
Is it that we are making objects of Jquery, I am also using Hammer.js so basically the second paranthesis has (Jquery, Hammer)
This question already has answers here:
What are these three dots in React doing?
(23 answers)
Closed 3 years ago.
Piece of code from angularfire in firestore query.
https://github.com/angular/angularfire/blob/master/docs/firestore/collections.md
return { id, ...data };
Why that's referred to as spread syntax! :)
This question already has answers here:
JavaScript object functions and `this` when unbound and returned in expression/parens
(2 answers)
Closed 3 years ago.
I came across this (document.createElement)('a');.
How is it different from document.createElement('a');
No difference.
Please read doc for more.
This question already has answers here:
Length of a JavaScript object
(43 answers)
Closed 6 years ago.
I dont see how we can find the length of an object. For arrays i can your array.length but it doesnt work for objects, any suggestions?
Thanks!
Just like that:
Object.keys(objectName).length;