forEach not working with vue-cli typescript

[avxkim]

Version

3.7.0

Environment info

  System:
    OS: macOS 10.14.5
    CPU: (12) x64 Intel(R) Core(TM) i7-8700B CPU @ 3.20GHz
  Binaries:
    Node: 12.1.0 - /usr/local/bin/node
    Yarn: Not Found
    npm: 6.9.0 - /usr/local/bin/npm
  Browsers:
    Chrome: 74.0.3729.157
    Firefox: Not Found
    Safari: 12.1.1
  npmPackages:
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0-beta.3
    @vue/babel-plugin-transform-vue-jsx:  1.0.0-beta.3
    @vue/babel-preset-app:  3.7.0
    @vue/babel-preset-jsx:  1.0.0-beta.3
    @vue/babel-sugar-functional-vue:  1.0.0-beta.3
    @vue/babel-sugar-inject-h:  1.0.0-beta.3
    @vue/babel-sugar-v-model:  1.0.0-beta.3
    @vue/babel-sugar-v-on:  1.0.0-beta.3
    @vue/cli-overlay:  3.7.0
    @vue/cli-plugin-babel: ^3.7.0 => 3.7.0
    @vue/cli-plugin-typescript: ^3.7.0 => 3.7.0
    @vue/cli-plugin-unit-mocha: ^3.7.0 => 3.7.0
    @vue/cli-service: ^3.7.0 => 3.7.0
    @vue/cli-shared-utils:  3.7.0
    @vue/component-compiler-utils:  2.6.0
    @vue/preload-webpack-plugin:  1.1.0
    @vue/test-utils: 1.0.0-beta.29 => 1.0.0-beta.29
    @vue/web-component-wrapper:  1.2.0
    bootstrap-vue: ^2.0.0-rc.19 => 2.0.0-rc.20
    portal-vue:  2.1.4
    typescript: ^3.4.5 => 3.4.5
    vue: ^2.6.10 => 2.6.10
    vue-class-component: ^7.1.0 => 7.1.0
    vue-element-loading: ^1.1.1 => 1.1.1
    vue-functional-data-merge:  2.0.7
    vue-hot-reload-api:  2.3.3
    vue-loader:  15.7.0
    vue-property-decorator: ^8.1.1 => 8.1.1
    vue-router: ^3.0.6 => 3.0.6
    vue-style-loader:  4.1.2
    vue-template-compiler: ^2.6.10 => 2.6.10
    vue-template-es2015-compiler:  1.9.1
    vuex: ^3.1.0 => 3.1.1
    vuex-module-decorators: ^0.9.8 => 0.9.9
    vuex-persist: ^2.0.0 => 2.0.0
  npmGlobalPackages:
    @vue/cli: 3.5.5

Steps to reproduce

const arr1 = [1, 2, 3, 4, 5]
const arr2 = []
arr1.forEach(element => {
  arr2.push({
    text: element.text,
    value: element.value
  })
})

What is expected?

It just works

What is actually happening?

Error happens:

This dependency was not found:

• core-js/modules/web.dom.iterable

---

Seems like babel polyfills .forEach for no reason.

[haoqunjiang]

You may have a wrong version of top-level core-js dependency hoisted. Please run npm install --save core-js@2 and try again.

[xgqfrms]

Q:

how to show Local PC / Mac Environment Info?

A:

just using the cli

$ vue info