Botão JavaScript OnClick
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});
Batman
document.getElementById("myBtn").addEventListener("click", function() {
alert("Hello World!");
});var element = document.getElementById("elem");
element.onclick = function(event) {
console.log(event);
}<script>
function myFunction() {
alert("ALERT THIS FUNCTION HAS RUNNED");
}
</script>
<button onclick="myFunction">click to run function</button>// Here you can use getElementById
// or getElementByClassName or getElementByTagName...
// Example #1
document.getElementById("button").onclick = function() {
alert("Hello World!");
}
// Example #2
let obj = document.getElementsByClassName('button');
obj.addEventListener("click", function() {
// your code here...
});
// Example #3 (getting attributes)
let obj = document.getElementById("button")
obj.onclick = function() {
obj.style.display = "none";
// or:
// obj.style = "display: none; color: #fff"
}<button onclick="Function()">Text</button> document.getElementById("Save").onclick = function ()
{
alert("hello");
//validation code to see State field is mandatory.
}