29 lines
768 B
TypeScript
29 lines
768 B
TypeScript
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import { isArray, isObject, isPlainObject } from './index'
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// For converting {{ interpolation }} values to displayed strings.
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export const toDisplayString = (val: unknown): string => {
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return val == null
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? ''
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: isObject(val)
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? JSON.stringify(val, replacer, 2)
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: String(val)
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}
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const replacer = (_key: string, val: any) => {
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if (val instanceof Map) {
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return {
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[`Map(${val.size})`]: [...val.entries()].reduce((entries, [key, val]) => {
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;(entries as any)[`${key} =>`] = val
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return entries
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}, {})
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}
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} else if (val instanceof Set) {
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return {
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[`Set(${val.size})`]: [...val.values()]
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}
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} else if (isObject(val) && !isArray(val) && !isPlainObject(val)) {
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return String(val)
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}
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return val
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}
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