Delete AddLineNumbers.mjs
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/**
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* @author n1474335 [n1474335@gmail.com]
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* @copyright Crown Copyright 2016
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* @license Apache-2.0
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*/
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import Operation from "../Operation.mjs";
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/**
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* Add line numbers operation
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*/
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class AddLineNumbers extends Operation {
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/**
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* AddLineNumbers constructor
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*/
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constructor() {
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super();
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this.name = "Add line numbers";
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this.module = "Default";
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this.description = "Adds line numbers to the output.";
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this.inputType = "string";
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this.outputType = "string";
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this.args = [];
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}
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/**
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* @param {string} input
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* @param {Object[]} args
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* @returns {string}
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*/
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run(input, args) {
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const lines = input.split("\n"),
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width = lines.length.toString().length;
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let output = "";
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for (let n = 0; n < lines.length; n++) {
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output += (n+1).toString().padStart(width, " ") + " " + lines[n] + "\n";
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}
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return output.slice(0, output.length-1);
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}
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}
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export default AddLineNumbers;
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