In JavaScript, the Error name property is used to set or return the name of an error.
Syntax:
errorObj.name
Property values: This property contains six different values as described below:
- SyntaxError: It represents a syntax error.
- RangeError: It represents an error in the range.
- ReferenceError: It represents an illegal reference.
- TypeError: It represents a type error.
- EvalError: It represents an error in the eval() function.
- URIError: It represents an error in the encodeURI().
Return Value: It returns a string, representing the name of the error.
Below are examples of the Error name Property.
Example:
JavaScript
try {
eval("alert('GeeksforGeeks)");
} catch (err) {
document.write( err.name);
} |
Output:
SyntaxError
Example 2: This example shows Syntax Error.
html
<!DOCTYPE html><html lang="en">
<head>
<title>
JavaScript Error name Property
</title>
</head>
<body style="text-align: center;">
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h3>
JavaScript Error Name Property
</h3>
<p id="gfg"></p>
<script>
try {
eval("alert('Geeks for Geeks)");
} catch (err) {
document.getElementById(
"gfg").innerHTML = err.name;
}
</script>
</body>
</html>
|
Output:
Example 3: This example shows Range Error.
html
<!DOCTYPE html><html lang="en">
<head>
<title>
JavaScript Error name Property
</title>
</head>
<body style="text-align: center;">
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h3>
JavaScript Error Name Property
</h3>
<p id="gfg"></p>
<script>
let num = 0;
try {
num.toPrecision(1000);
}
catch (err) {
document.getElementById(
"gfg").innerHTML = err.name;
}
</script>
</body>
</html>
|
Output:
Example 4: This example shows Reference Error.
html
<!DOCTYPE html><html lang="en">
<head>
<title>
JavaScript Error name Property
</title>
</head>
<body style="text-align: center;">
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h3>
JavaScript Error Name Property
</h3>
<p id="gfg"></p>
<script>
let y;
try {
y = x + y;
}
catch (err) {
document.getElementById(
"gfg").innerHTML = err.name;
}
</script>
</body>
</html>
|
Output:
Example 5: This example shows Type Error.
html
<!DOCTYPE html><html lang="en">
<head>
<title>
JavaScript Error name Property
</title>
</head>
<body style="text-align: center;">
<h1 style="color: green;">
GeeksforGeeks
</h1>
<h3>
JavaScript Error Name Property
</h3>
<p id="gfg"></p>
<script>
let x = 1;
try {
x.toLowerCase();
} catch (err) {
document.getElementById(
"gfg").innerHTML = err.name;
}
</script>
</body>
</html>
|
Output:
Browser Support: The browsers supported by JavaScript Error name Property are listed below:
- Google Chrome
- Firefox
- Internet Explorer
- Opera
- Safari