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export const serialize = (obj: Record<string, any>): string => {
return JSON.stringify(obj, (_, value) => {
if (typeof value === 'function') {
return `__FUNCTION__${value.toString()}`
}
return value
})
}
/**
* Deserialize a serialized string.
*
* @param {string | null} arg
* @returns {R}
*/
export const deserialize = <R>(arg?: string | null): R => {
// is the argument null or undefined?
if (arg === null || arg === undefined) {
return arg as R
}
// is the string "undefined"?
if (arg === 'undefined') {
return undefined as R
}
// is the string empty?
if (arg === '') {
return arg as R
}
// is the string a number?
if (!isNaN(Number(arg))) {
return parseFloat(arg) as R
}
// is the string a boolean?
if (arg === 'true') {
return true as R
}
if (arg === 'false') {
return false as R
}
// is the string JSON?
try {
const potentiallyParsableJson = arg
// wrap all strings wrapped in single quotes with double quotes
.replace(/'([^']+)'/g, '"$1"')
// wrap all unquoted keys in double quotes
.replace(/([{,]\s*)([a-zA-Z0-9_]+?)\s*:/g, '$1"$2":')
// remove all trailing commas
.replace(/,\s*}/g, '}').replace(/,\s*]/g, ']')
return JSON.parse(potentiallyParsableJson, (_, value) => {
if (typeof value === 'string' && value.startsWith('__FUNCTION__')) {
const functionBody = value.substring(12)
return new Function(`return ${functionBody}`)()
}
return value
})
} catch (e) {
// We've run out of options, just return the string
return arg as R
}
}
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