This JavaScript exception invalid Array.prototype.sort argument occurs if the parameter of Array.prototype.sort() is not from either undefined or a function which sorts accordingly.
Message:
TypeError: argument is not a function object (Edge) TypeError: invalid Array.prototype.sort argument (Firefox)
Error Type:
TypeError
Cause of the Error: The argument is passed to the sort() method should be either undefined or a function which compares its operands.
Example 1: In this example, argument passed to sort() method is not expected, So the error has occurred.
Javascript
[2, 5, 6, 1, 3].sort(3); // error here |
Output:
TypeError: argument is not a function object
Example 2: In this example, argument passed to sort() method is not expected, So the error has occurred.
Javascript
let compareFun = { Asc: (a, b) => a >= b, Dsc: (a, b) => a <= b};// TypeError[1, 2, 3, 6, 5, 8].sort( compareFun[this.key] || 'Asc'); |
Output:
TypeError: argument is not a function object
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