angular-docs-cn/modules/change_detection/test/util.js

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import {isBlank} from 'facade/lang';
export function arrayChangesAsString({collection, previous, additions, moves, removals}) {
if (isBlank(collection)) collection = [];
if (isBlank(previous)) previous = [];
if (isBlank(additions)) additions = [];
if (isBlank(moves)) moves = [];
if (isBlank(removals)) removals = [];
return "collection: " + collection.join(', ') + "\n" +
"previous: " + previous.join(', ') + "\n" +
"additions: " + additions.join(', ') + "\n" +
"moves: " + moves.join(', ') + "\n" +
"removals: " + removals.join(', ') + "\n";
}
export function kvChangesAsString({map, previous, additions, changes, removals}) {
if (isBlank(map)) map = [];
if (isBlank(previous)) previous = [];
if (isBlank(additions)) additions = [];
if (isBlank(changes)) changes = [];
if (isBlank(removals)) removals = [];
return "map: " + map.join(', ') + "\n" +
"previous: " + previous.join(', ') + "\n" +
"additions: " + additions.join(', ') + "\n" +
"changes: " + changes.join(', ') + "\n" +
"removals: " + removals.join(', ') + "\n";
}