检查数组是否包含(仅)数字值 [英] Check if an array contains (only) numeric values

问题描述

我有诸如这样的数组

var arrayVal_Int = ["21", "53", "92", "79"];   
var arrayVal_Alpha = ["John", "Christine", "Lucy"];  
var arrayVal_AlphaNumeric = ["CT504", "AP308", "NK675"];

• arrayVal_Int以上的字符应被视为(纯)数字.
• arrayVal_Alpha和arrayVal_AlphaNumeric应该被视为字符串.
• Above arrayVal_Int should be considered as (purely) numeric.
• arrayVal_Alpha and arrayVal_AlphaNumeric should be considered as strings.

我需要在JavaScript中进行检查.

I need to check that in JavaScript.

推荐答案

最短的解决方案，当且仅当每一项都是(可强制)数字时，才评估为true:

Shortest solution, evals to true if and only if every item is (coercible to) a number:

!yourArray.some(isNaN)

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