@angular/core
Version:
Angular - the core framework
44 lines • 4.74 kB
JavaScript
/**
* @license
* Copyright Google Inc. 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.io/license
*/
export function stringify(token) {
if (typeof token === 'string') {
return token;
}
if (Array.isArray(token)) {
return '[' + token.map(stringify).join(', ') + ']';
}
if (token == null) {
return '' + token;
}
if (token.overriddenName) {
return `${token.overriddenName}`;
}
if (token.name) {
return `${token.name}`;
}
const res = token.toString();
if (res == null) {
return '' + res;
}
const newLineIndex = res.indexOf('\n');
return newLineIndex === -1 ? res : res.substring(0, newLineIndex);
}
/**
* 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, after) {
return (before == null || before === '') ?
(after === null ? '' : after) :
((after == null || after === '') ? before : before + ' ' + after);
}
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