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packages/core/src/util/stringify.ts
64 строки
2 KB
arturovt
refactor(core): improve `stringify` (#59745)
19 фев 2025, 18:21
19 фев 2025, 18:21
cf3a507
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/** * @license * Copyright Google LLC All Rights Reserved. * * Use of this source code is governed by an MIT-style license that can be * found in the LICENSE file at https://angular.dev/license */ export function stringify(token: any): string { if (typeof token === 'string') { return token; } if (Array.isArray(token)) { return `[${token.map(stringify).join(', ')}]`; } if (token == null) { return '' + token; } const name = token.overriddenName || token.name; if (name) { return `${name}`; } const result = token.toString(); if (result == null) { return '' + result; } const newLineIndex = result.indexOf('\n'); return newLineIndex >= 0 ? result.slice(0, newLineIndex) : result; } /** * Concatenates two strings with separator, allocating new strings only when necessary. * * @param before before string. * @param separator separator string. * @param after after string. * @returns concatenated string. */ export function concatStringsWithSpace(before: string | null, after: string | null): string { if (!before) return after || ''; if (!after) return before; return `${before} ${after}`; } /** * Ellipses the string in the middle when longer than the max length * * @param string * @param maxLength of the output string * @returns ellipsed string with ... in the middle */ export function truncateMiddle(str: string, maxLength = 100): string { if (!str || maxLength < 1 || str.length <= maxLength) return str; if (maxLength == 1) return str.substring(0, 1) + '...'; const halfLimit = Math.round(maxLength / 2); return str.substring(0, halfLimit) + '...' + str.substring(str.length - halfLimit); }