what is ... in javascript
function sum(...numbers) {
return numbers.reduce((accumulator, current) => {
return accumulator += current;
});
};
sum(1,2) // 3
sum(1,2,3,4,5) // 15what is ... in javascript
function sum(...numbers) {
return numbers.reduce((accumulator, current) => {
return accumulator += current;
});
};
sum(1,2) // 3
sum(1,2,3,4,5) // 15what is javascript
// Function: creates a new paragraph and appends it to the bottom of the HTML body.
function createParagraph() {
let para = document.createElement('p');
para.textContent = 'You clicked the button!';
document.body.appendChild(para);
}
/*
1. Get references to all the buttons on the page in an array format.
2. Loop through all the buttons and add a click event listener to each one.
When any button is pressed, the createParagraph() function will be run.
*/
const buttons = document.querySelectorAll('button');
for (let i = 0; i < buttons.length ; i++) {
buttons[i].addEventListener('click', createParagraph);
}Copyright © 2021 Codeinu
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