Category: JavaScript Answers

Sometimes, we may run into the ‘RangeError: repeat count must be less than infinity’ when we’re developing JavaScript apps.

In this article, we’ll look at how to fix the ‘RangeError: repeat count must be less than infinity’ when we’re developing JavaScript apps.

Fix the ‘RangeError: repeat count must be less than infinity’ When Developing JavaScript Apps

To fix the ‘RangeError: repeat count must be less than infinity’ when we’re developing JavaScript apps, we should make sure we call the String.prototype.repeat method with an argument that’s a valid JavaScript integer.

For instance, instead of writing:

'abc'.repeat(Infinity);
'a'.repeat(2**28);    

which either has Infinity or an integer that’s bigger than the max for a JavaScript number, we write:

'abc'.repeat(0);
'abc'.repeat(1);
'abc'.repeat(2);
'abc'.repeat(3.5);

which all are called with valid numbers as arguments.

3.5 will be converted to an integer when repeat is run.

Conclusion

To fix the ‘RangeError: repeat count must be less than infinity’ when we’re developing JavaScript apps, we should make sure we call the String.prototype.repeat method with an argument that’s a valid JavaScript integer.

Sometimes, we may run into the ‘RangeError: radix must be an integer’ when we’re developing JavaScript apps.

In this article, we’ll look at how to fix the ‘RangeError: radix must be an integer’ when we’re developing JavaScript apps.

Fix the ‘RangeError: radix must be an integerRangeError: precision is out of range’ When Developing JavaScript Apps

To fix the ‘RangeError: radix must be an integer’ when we’re developing JavaScript apps, we should make sure we pass in an integer between 2 and 36 inclusive as the value of the optional radix parameter of the Number.prototype.toString or BigInt.prototype.toString methods.

In Edge, the same error is called RangeError: invalid argument.

In Firefox, the error is called RangeError: invalid argument.

And in Chrome, the same error is called RangeError: toString() radix argument must be between 2 and 36.

Therefore, instead of writing the following:

(12).toString(0);
(12).toString(1);
(12).toString(37);
(12).toString(150);
(12071989).toString('MM-dd-yyyy')

We write:

(12).toString(2);  
(13).toString(8);  
(0x42).toString(10);
(100000).toString(16)

Conclusion

To fix the ‘RangeError: radix must be an integer’ when we’re developing JavaScript apps, we should make sure we pass in an integer between 2 and 36 inclusive as the value of the optional radix parameter of the Number.prototype.toString or BigInt.prototype.toString methods.

In Edge, the same error is called RangeError: invalid argument.

In Firefox, the error is called RangeError: invalid argument.

And in Chrome, the same error is called RangeError: toString() radix argument must be between 2 and 36.

Sometimes, we may run into the ‘RangeError: precision is out of range’ when we’re developing JavaScript apps.

In this article, we’ll look at how to fix the ‘RangeError: precision is out of range’ when we’re developing JavaScript apps.

Fix the ‘RangeError: precision is out of range’ When Developing JavaScript Apps

To fix the ‘RangeError: precision is out of range’ when we’re developing JavaScript apps, we should make sure we pass in a number between 0 and 20 into the toExponential, toFixed or toPrecision methods.

In Edge, the equivalent error is RangeError: The number of fractional digits is out of range or RangeError: The precision is out of range.

In Firefox, the equivalent error is RangeError: precision {0} out of range.

In Chrome, the equivalent error is RangeError: toExponential() argument must be between 0 and 20, RangeError: toFixed() digits argument must be between 0 and 20, or RangeError: toPrecision() argument must be between 1 and 21.

For instance, we shouldn’t write code like:

88.toExponential(-1); 
88.1234.toExponential(101); 

2.34.toFixed(-100);    
2.34.toFixed(1001);        

1234.5.toPrecision(-1);    
1234.5.toPrecision(101);

Instead, we write:

88.toExponential(11); 
88.1234.toExponential(11); 

2.34.toFixed(10);    
2.34.toFixed(10);        

1234.5.toPrecision(1);    
1234.5.toPrecision(11);

Conclusion

To fix the ‘RangeError: precision is out of range’ when we’re developing JavaScript apps, we should make sure we pass in a number between 0 and 20 into the toExponential, toFixed or toPrecision methods.

In Edge, the equivalent error is RangeError: The number of fractional digits is out of range or RangeError: The precision is out of range.

In Firefox, the equivalent error is RangeError: precision {0} out of range.

In Chrome, the equivalent error is RangeError: toExponential() argument must be between 0 and 20, RangeError: toFixed() digits argument must be between 0 and 20, or RangeError: toPrecision() argument must be between 1 and 21.

Sometimes, we may run into the ‘RangeError: invalid date’ when we’re developing JavaScript apps.

In this article, we’ll look at how to fix the ‘RangeError: invalid date’ when we’re developing JavaScript apps.

Fix the ‘RangeError: invalid date’ When Developing JavaScript Apps

To fix the ‘RangeError: invalid date’ when we’re developing JavaScript apps, we should make sure that we pass in a valid date string value into the Date constructor or the Date.parse method.

In Edge, the error message for the same error is RangeError: invalid date.

In Chrome, the error message for the same error is RangeError: invalid time value or RangeError: Provided date is not in valid range.

For instance, we should write code like:

new Date('foo-bar 2014');
new Date('2024-25-23').toISOString();
new Date('foo-bar 2014').toString();

since the arguments are all invalid date strings.

Instead, we should write:

new Date('05 October 2021 14:48 UTC');
new Date(1317826080);

Conclusion

To fix the ‘RangeError: invalid date’ when we’re developing JavaScript apps, we should make sure that we pass in a valid date string value into the Date constructor or the Date.parse method.

In Edge, the error message for the same error is RangeError: invalid date.

In Chrome, the error message for the same error is RangeError: invalid time value or RangeError: Provided date is not in valid range.

Sometimes, we may run into the ‘RangeError: invalid array length’ when we’re developing JavaScript apps.

In this article, we’ll look at how to fix the ‘RangeError: invalid array length’ when we’re developing JavaScript apps.

Fix the ‘RangeError: invalid array length’ When Developing JavaScript Apps

To fix the ‘RangeError: invalid array length’ when we’re developing JavaScript apps, we should make sure the array length value that we call the Array and ArrayBuffer constructors are called with a valid value.

Also, we should make sure we set the length property of an array to a non-negative integer.

For instance, these are all code with invalid length value passed into the Array and ArrayBuffer constructors:

new Array(Math.pow(2, 40))
new Array(-1)
new ArrayBuffer(Math.pow(2, 32)) 
new ArrayBuffer(-1)

We also can’t set the length property of an array to an invalid number:

let a = [];
a.length = - 1; 

To fix the error, we can write code like:

new Array(100)
new ArrayBuffer(100) 

let a = [];
a.length = - 1; 

Conclusion

To fix the ‘RangeError: invalid array length’ when we’re developing JavaScript apps, we should make sure the array length value that we call the Array and ArrayBuffer constructors are called with a valid value.

Also, we should make sure we set the length property of an array to a non-negative integer.