949fac1a7c
This commit applies `strictNullChecks` to the entire codebase to improve maintainability and type safety. Key changes include: - Remove some explicit null-checks where unnecessary. - Add necessary null-checks. - Refactor static factory functions for a more functional approach. - Improve some test names and contexts for better debugging. - Add unit tests for any additional logic introduced. - Refactor `createPositionFromRegexFullMatch` to its own function as the logic is reused. - Prefer `find` prefix on functions that may return `undefined` and `get` prefix for those that always return a value.
28 lines
705 B
TypeScript
28 lines
705 B
TypeScript
export function indentText(
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text: string,
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indentLevel = 1,
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): string {
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validateText(text);
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const indentation = '\t'.repeat(indentLevel);
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return splitTextIntoLines(text)
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.map((line) => (line ? `${indentation}${line}` : line))
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.join('\n');
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}
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export function splitTextIntoLines(text: string): string[] {
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validateText(text);
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return text
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.split(/[\r\n]+/);
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}
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export function filterEmpty(texts: readonly (string | undefined | null)[]): string[] {
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return texts
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.filter((title): title is string => Boolean(title));
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}
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function validateText(text: string): void {
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if (typeof text !== 'string') {
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throw new Error(`text is not a string. It is: ${typeof text}\n${text}`);
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}
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}
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