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method BufReader.prototype.readString
import { BufReader } from "https://deno.land/std@0.114.0/io/buffer.ts";

readString() reads until the first occurrence of delim in the input, returning a string containing the data up to and including the delimiter. If ReadString encounters an error before finding a delimiter, it returns the data read before the error and the error itself (often null). ReadString returns err != nil if and only if the returned data does not end in delim. For simple uses, a Scanner may be more convenient.

Parameters

delim: string

Returns

Promise<string | null>