assertcheck v0.5.15

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assertcheck / fmtValue

Function: fmtValue()

function fmtValue(v, depth?): string;

Defined in: src/format.ts:230

Formats any JavaScript value into a compact, type-coloured string suitable for display in error output.

Parameters

Parameter	Type	Default value	Description
v	unknown	undefined	The value to format.
depth	number	0	Internal recursion depth (0 = top level).

Returns

string

A formatted, optionally coloured string.

Remarks

• Strings are wrapped in "double quotes".
• Arrays are abbreviated after 3 elements: [1, 2, 3, …+7].
• Objects are abbreviated after 3 keys.
• Recursion is limited to 2 levels deep.
• When ANSI is available, each type is rendered in a distinct colour.

Example

import { fmtValue } from "assertcheck/format"

fmtValue("hello")        // → "hello"   (green in terminal)
fmtValue(42)             // → 42        (yellow)
fmtValue([1, 2, 3, 4])   // → [1, 2, 3, …+1]
fmtValue(null)           // → null      (dim)