How should I practice Ordered Deployment Configuration Validator?

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Ordered Deployment Configuration Validator

Wells Fargo● EasyINTERNOA

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Problem statement

Validate a four-element string array values in this exact order: app_name, port, debug_mode, and max_connections. Stop at the first failed field.

app_name must be non-empty and contain at most 50 characters. Otherwise use app_name must be non-empty and max 50 characters.
port must be a strict base-10 integer string from 1024 through 65535, inclusive. Otherwise use port must be between 1024 and 65535.
debug_mode is case-insensitive and must be true or false. Otherwise use debug_mode must be true or false.
max_connections must be a strict base-10 integer string from 1 through 10000, inclusive. Otherwise use max_connections must be between 1 and 10000.

Inputs are not trimmed. A strict integer string contains an optional leading + or - followed by one or more digits.

Encode a successful typed configuration as ["ok", app_name, port, debug_mode, max_connections], using normalized decimal integers and a lowercase boolean. Encode a failure as ["error", message].

Function

validateDeploymentConfig(values: String[]) → String[]

Examples

Example 1

values = ["payments","8080","TRUE","250"]return = ["ok","payments","8080","true","250"]

All four fields pass in order. The integer strings are normalized and TRUE becomes true.

Example 2

values = ["","80","maybe","0"]return = ["error","app_name must be non-empty and max 50 characters"]

Validation stops immediately at the empty app_name, even though later fields are also invalid.

Example 3

values = ["api","65536","false","100"]return = ["error","port must be between 1024 and 65535"]

The application name is valid, but 65536 is one above the allowed port range.

Constraints

values.length == 4.
Each element of values is a non-null string.
Inputs are validated exactly as received, except debug_mode is converted to lowercase.