Converts a valid String to an integer. The input String should start with an integer number. If the String contains non-integer numbers, the function will stop performing the conversion.
- myString: a variable of type String.
- If no valid conversion could be performed because the String doesn't start with a integer number, a zero is returned. Data type: long.
The result on Serial Monitor:
※ NOTES AND WARNINGS:
If the string is modified, it is highly recommended using String.reserve() to prevent the memory fragmentation issue