How to pass paramters in dynamically created functions in Javascript?
Question
I have created one form and form after submitting the value I want to show them in a table. In table I have one section where I want to delete or edit a particular user on a button. But when I am passing the id to that function I am getting error saying that refernece error occurred!
function getEmployeeDetails() {
for (var i = 0; i < userArray.length; i++) {
var tr = "<tr>";
tr +=
"<td class='table-data'/td>" +
userArray[i].id +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].name +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].email +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].gender +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].role +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].english +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].hindi +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].othersLang +
"</td>" +
"<td class='table-data'/td>" +
userArray[i].description +
"</td>" +
"<td class='table-data'/td>" +
"<button onclick='deleteUser( userArray[i].id )'>Delete</button> || <button onclick='editUser( userArray[i].id )'>Edit</button>" +
"</td>" +
"</tr>";
tbody.innerHTML += tr;
}
}
function deleteUser(id) {
console.log("delteuser", typeof id, id);
}
function editUser(id) {
console.log("edit", id);
}
Where I have made the mistakes?
2 answers
solution1
1 2019-11-12 13:12:20
Change
<button onclick='deleteUser( userArray[i].id )'>
To something like
<button onclick='deleteUser('+userArray[i].id+')'>
In your current attempt you are not inserting the value of userArray[i].id but the variable userArray[i].id which is kind of nonsense.
Same story with the editUser function
solution2
1 ACCPTED 2019-11-12 13:31:46
The problem is in the string concatenation you are using in the onClick event.
You can use a backtick character instead. Copy-paste and check the below code.
<html>
<body>
<table id="table"></table>
<script>
getEmployeeDetails();
function getEmployeeDetails() {
let userArray = [{ id: 1 }, { id: 2 }];
var tr = "";
for (var i = 0; i < userArray.length; i++) {
tr +=
`<td class="table-data">
<button onclick="deleteUser(` +
userArray[i].id +
`)">Delete</button> || <button onclick="editUser( ` +
userArray[i].id +
`)">Edit</button>
</td>`;
}
document.getElementById("table").innerHTML = tr;
}
function deleteUser(id) {
console.log("delteuser", typeof id, id);
}
function editUser(id) {
console.log("edit", id);
}
</script>
</body>
</html>
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