The functionality of the mathjs eval function varies when used with and without a string input

When I calculate Arithmetic operations using the math.eval function without quotes, null values are ignored and correct results are obtained. However, if I use quotes in the same function, it throws an error.

The issue is that I require strings because I have custom functions that rely on them for processing.

I am currently utilizing version 4.0.1 of mathjs.

https://i.sstatic.net/NJPnQ.png

Answer №1

When using math.eval(100+null), the expression 100+null is computed prior to calling the .eval() function. In JavaScript, 100+null equates to 100. If you input a string instead, the Mathjs parser will attempt to evaluate the expression, resulting in an error due to the absence of a null constant within the Mathjs syntax.

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