Same for undefined: age === undefinedIn both cases, you can check for:if (!age) { }and this will be matching both null and undefined.You can also use the typeof operator:let age typeof age //'undefined'although null is evaluated as an object, even though it is a primitive type:...
shown inTable 3.2because of the relative concentrations of the NADH and NAD+and because oxygen comprises only 20% of air). The redoxpotential differenceΔEh,7of 1.16 V is the measure of the thermodynamic disequilibrium between the couples. In general terms for the redox couples A and B: ...
This study utilizes FOA to optimize the spread parameter of GRNN, and establishes the FOA-GRNN model, which is more precise and robust. It then employs FOA-GRNN to analyze factors affecting industrial technology innovation. That extends the prior research and fills a research gap. The rest of ...
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