Overview
Get the type name of a value. Returns a human-readable type string such as
"Number", "String", "Array", "Object", "Function", "AsyncFunction", "Symbol", "Null", "Undefined", etc.Signature
typeOf(payload: any): string
| Parameter | Type | Description |
|---|---|---|
payload |
any |
The value to test. |
Returns:
string — Type name.Example
Result:
Number
<div class="mb-3">
<label class="form-label">Select a value</label>
<select id="typeOfSelect" class="form-select form-select-solid">
<option value="number">42 (Number)</option>
<option value="string">'hello' (String)</option>
<option value="boolean">true (Boolean)</option>
<option value="object">{} (Object)</option>
<option value="array">[] (Array)</option>
<option value="null">null (Null)</option>
<option value="undefined">undefined (Undefined)</option>
</select>
</div>
<div>
<span class="fw-bold">Result: </span>
<code id="typeOfResult">Number</code>
</div>
var typeOf = metronicExtension.utils.typeOf;
var select = document.getElementById('typeOfSelect');
var result = document.getElementById('typeOfResult');
var testValues = {
'number': 42,
'string': 'hello',
'boolean': true,
'object': {},
'array': [],
'null': null,
'undefined': undefined,
};
select.addEventListener('change', function() {
var val = testValues[select.value];
result.textContent = typeOf(val);
});
// trigger initial
result.textContent = typeOf(42);