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| // http://dupontcours.free.fr/JavaScript/DOM-javascript/dom.html | |
| const myHTML = `<button data-number="">1</button> | |
| <button data-number="">2</button> | |
| <button data-number="">3</button> | |
| <button data-operation="">*</button>` | |
| document.body.innerHTML=myHTML; | |
| const numberButtons = document.querySelectorAll('[data-number]'); | |
| let operand = ""; | |
| numberButtons.forEach(function(button){ | |
| button.addEventListener('click', function(){ | |
| operand += button.innerText; | |
| document.body.insertAdjacentHTML("beforeend",`<p>🧮${operand}</p>`) | |
| }) | |
| }) |