mirror of https://github.com/jkjoy/sunpeiwen.git
36 lines
778 B
JavaScript
36 lines
778 B
JavaScript
'use strict';
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module.exports = (string, count = 1, options) => {
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options = {
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indent: ' ',
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includeEmptyLines: false,
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...options
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};
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if (typeof string !== 'string') {
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throw new TypeError(
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`Expected \`input\` to be a \`string\`, got \`${typeof string}\``
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);
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}
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if (typeof count !== 'number') {
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throw new TypeError(
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`Expected \`count\` to be a \`number\`, got \`${typeof count}\``
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);
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}
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if (typeof options.indent !== 'string') {
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throw new TypeError(
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`Expected \`options.indent\` to be a \`string\`, got \`${typeof options.indent}\``
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);
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}
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if (count === 0) {
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return string;
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}
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const regex = options.includeEmptyLines ? /^/gm : /^(?!\s*$)/gm;
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return string.replace(regex, options.indent.repeat(count));
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};
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