How to use the ifError function from assert-plus

client.js

GitHub: TritonDataCenter/node-manta

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/**
 * Like ftw(3) - performs a `find` operation.
 *
 * client.ftw('/', function (err, res) {
 *     assert.ifError(err);
 *
 *     res.on('entry', function (obj) {
 *         console.log(obj);
 *     });

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+ 13 other calls in file

vms.list-filter-internal-metadata.test.js

GitHub: TritonDataCenter/sdc-vmapi

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    }
}


exports.setUp = function (callback) {
    common.setUp(function (err, _client) {
        assert.ifError(err);
        assert.ok(_client, 'restify client');
        client = _client;
        callback();
    });

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index.js

GitHub: TritonDataCenter/node-ufds

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*        client.getUser('admin', function (err, user) {
*            assert.ifError(err);
*
*            // Note the user object has its own methods
*            user.listKeys(function (err2, keys) {
*                assert.ifError(err2);
*
*                keys.forEach(function (k) {
*                    log.debug({
*                        user: user.login,

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+ 3 other calls in file

metrics-manager.js

GitHub: TritonDataCenter/node-triton-metrics

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 */
req.on('end', function collectMetrics() {
    vasync.parallel({funcs: preCollectFuncs}, function _onPreCollected(
        preCollectErr
    ) {
        assert.ifError(
            preCollectErr,
            'preCollectFuncs should not callback with error'
        );

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