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createErrorWithCleanStackTrace.ts
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createErrorWithCleanStackTrace.ts
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export { createErrorWithCleanStackTrace }
function createErrorWithCleanStackTrace(errorMessage: string, numberOfStackTraceLinesToRemove: number) {
const err = new Error(errorMessage)
err.stack = clean(err.stack, numberOfStackTraceLinesToRemove)
return err
}
function clean(errStack: string | undefined, numberOfStackTraceLinesToRemove: number): string | undefined {
if (!errStack) {
return errStack
}
const stackLines = splitByLine(errStack)
let linesRemoved = 0
const stackLine__cleaned = stackLines
.filter((line) => {
// Remove internal stack traces
if (line.includes(' (internal/') || line.includes(' (node:internal')) {
return false
}
if (linesRemoved < numberOfStackTraceLinesToRemove && isStackTraceLine(line)) {
linesRemoved++
return false
}
return true
})
.join('\n')
return stackLine__cleaned
}
function isStackTraceLine(line: string): boolean {
return line.startsWith(' at ')
}
function splitByLine(str: string): string[] {
// https://stackoverflow.com/questions/21895233/how-in-node-to-split-string-by-newline-n
return str.split(/\r?\n/)
}