How to use the partial function from lodash

astrobench.js

GitHub: Irrelon/ForerunnerDB

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 * @param {...*} [arg] Arguments to be partially applied.
 * @returns {Function} Returns the new partially applied function.
 * @example
 *
 * var greet = function(greeting, name) { return greeting + ' ' + name; };
 * var hi = _.partial(greet, 'hi');
 * hi('fred');
 * // => 'hi fred'
 */
function partial(func) {

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lodash-contrib.commonjs.js

GitHub: node4good/lodash-contrib

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module.exports.overSome            = _.overSome;
module.exports.pad                 = _.pad;
module.exports.padEnd              = _.padEnd;
module.exports.padStart            = _.padStart;
module.exports.parseInt            = _.parseInt;
module.exports.partial             = _.partial;
module.exports.partialRight        = _.partialRight;
module.exports.partition           = _.partition;
module.exports.partitionBy         = _.partitionBy;
module.exports.pick                = _.pick;

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cat.js

GitHub: mrijk/speculaas

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function cat(...predicates) {
    const pairs = _.chunk(predicates, 2);

    return {
        op: 'cat',
        conform: _.partial(_conform, pairs),
        unform: values => _.map(pairs, ([k, p]) => unform(p, values[k])),
        gen: () => tcg.array(_.map(pairs, ([, p]) => gen(p))),
        describe: () => [cat.name, ...describe(predicates)],
        explain: function*(values, {via}) {

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auth.js

GitHub: bcgov/EDUC-STUDENT-ADMIN

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  const privateKey = config.get('tokenGenerate:privateKey');
  const uiToken = jsonwebtoken.sign({}, privateKey, signOptions);
  log.verbose('Generated JWT', uiToken);
  return uiToken;
},
isValidUiTokenWithRoles: partial(isValidUiToken, isUserHasRoles),
isValidUserWithRoles: partial(isValidUser, isUserHasRoles),
...createRoleHelpers(userRoles),

async getApiCredentials() {

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lodash.js

GitHub: mdmarufsarker/lodash

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once();


const overArgs = _.overArgs((x, y) => [x, y], [n => n + 1, n => n + 2]);
console.log(overArgs(1, 2)); // => [2, 4]


const partial = _.partial((a, b, c) => a + b + c, 1, 2);
console.log(partial(3)); // => 6


const partialRight = _.partialRight((a, b, c) => a + b + c, 1, 2);
console.log(partialRight(3)); // => 6

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index.js

GitHub: Eveble/eveble

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                json[key] = serializer.fromJSONValue(json[key]);
            }
        }
        return new TypeCtor(json);
    };
    return lodash.partial(construct, this, type);
}
getFactory(typeName) {
    return this.ejson.getType(typeName);
}

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default-commands.js

GitHub: Waoap/staruml-app-asar

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app.commands.register('project:new', handleNew, '文件: 新建')
app.commands.register('project:open', handleOpen, '文件: 打开...')
app.commands.register('project:save', handleSave, '文件: 保存')
app.commands.register(
  'project:save-as',
  _.partial(handleSave, undefined, true),
  '文件: 另存为...'
)
app.commands.register(
  'project:import-fragment',

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lodash.js

GitHub: bySxS/ExpressJS-knex-faker

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//         return fn.apply(this, _.concat(fixed, arguments)) //concat обьединяет в массив
//     }
// }


//partial  =================== //принимает функцию и аргументы к ней
const double = _.partial(multiple, 2)
const half = _.partialRight(divide, 2)
const half2 = _.partial(divide, _, 2) //_ первый параметр оставляем под значение 20 half2(20)


logger.info('умножаем число 21 на 2 через partial  = ' + double(21))

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events.js

GitHub: sindeshiva/Test

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  /**
   * @param options {open_project.LaunchArgs}
   */
  start (options, bus) {
    // curry left options
    return ipc.on('request', _.partial(this.handleEvent, options, bus))
  },


}

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functiondemo.js

GitHub: Hupeng7/es6demo

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//_.partial(func,[partials])
function greet1(greeting, name) {
    return greeting + ' ' + name;
}
var sayHelloTo = _.partial(greet1, 'hello');
var sayHelloTo1 = sayHelloTo('fred');
console.log('sayHelloTo1--->', sayHelloTo1);
//sayHelloTo1---> hello fred

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tests.js

GitHub: YWTechIT/functional-programming-in-javascript

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QUnit.test("추가 합성", function () {
    const trim = (str) => str.replace(/^\s*|\s*$/g, '');
    const normalize = (str) => str.replace(/\-/g, '');
    const validLength = (param, str) => str.length === param;
    const checkLengthSsn = _.partial(validLength, 9);


    const cleanInput = R.compose(normalize, trim);
    const isValidSsn = R.compose(checkLengthSsn, cleanInput);

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events.ts

GitHub: xunonxyz/cypress

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    return ipc.removeAllListeners()
  },

  start (options: EventsStartArgs, bus: EventEmitter) {
    // curry left options
    // ipc.on('request', _.partial(this.handleEvent, options, bus))
  },
}

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packages.js

GitHub: lewisvoncken/cypress

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}

const yarn = createCLIExecutable('yarn')
const npx = createCLIExecutable('npx')

const runAllBuild = _.partial(npx, ['lerna', 'run', 'build-prod', '--ignore', 'cli'])

// removes transpiled JS files in the original package folders
const runAllCleanJs = _.partial(npx, ['lerna', 'run', 'clean-js', '--ignore', 'cli'])

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+ 3 other calls in file