有谁知道如何在 Ionic Storage 中合并 2 个阵列？

Question

我在两步警报中获取用户输入并单独保存数据。我想合并像 "www.youtube.com/"+"watch?v=tAGnKpE4NCI" = "www.youtube.com/watch?v=tAGnKpE4NCI" 这样的数组。

我查找并找到 concat() 但它是这样工作的：

A = [1,2,3]
B = [a,b,c] 
C = A.concat( B ) 
C = [1,2,3,a,b,c]

我想实现这个：C = [1,a,2,b,3,c]

这些是模拟器截图：

 type: Array<{type: any}> = [];
  myEncodedData: Array<{}> = [];
  extention: Array<{extention: any}> = [];
  testRadioOpen: boolean;
  testRadioResult: any;

    async generateQR(type) {
        const alert = await this.alertController.create({
          header: 'Create your personalize QR!',
          inputs: [
            {
              name: 'insta',
              type: 'radio',
              label: 'www.instagram.com/',
              value: 'www.instagram.com/',
              checked: type === 'insta'

            },
            {
              name: 'face',
              type: 'radio',
              value: 'www.facebook.com/',
              label: 'www.facebook.com/',
              checked: type === 'face'

            },
            {
              name: 'youtube',
              type: 'radio',
              value: 'www.youtube.com/',
              label: 'www.youtube.com/',
              checked: type === 'youtube'

            },
            {
              name: 'twitter',
              type: 'radio',
              value: 'www.twitter.com/',
              label: 'www.twitter.com/',
              checked: type === 'twitter'

            },
            {
              name: 'empty',
              type: 'radio',
              value: '',
              label: '',
              checked: true
            }
          ],
          buttons: [
            {
              text: 'Cancel',
              role: 'cancel',
              cssClass: 'secondary',
              handler: () => {
              }
            }, {
              text: 'Ok',
              handler: async (data) => {
                const alert = await this.alertController.create({
                  header: 'Create your personalize QR!',
                  inputs: [
                    {
                      name: 'extention',
                      type: 'text',
                      placeholder: 'enter an extention: '
                    },
                  ],
                  buttons: [
                    {
                      text: 'Cancel',
                      role: 'cancel',
                      cssClass: 'secondary',
                      handler: () => {
                      }
                    }, {
                      text: 'Ok',
              handler: (data) => {
                console.log('Radio data:', data);
                this.testRadioOpen = false;
                this.testRadioResult = data;
                this.type.push({
                  type: this.testRadioResult,
                });

              }
            }
          ]
        });
                await alert.present();
                this.extention = data;
                this.extention.push({
                  extention: this.testRadioResult,
        });
                this.storage.set('extention', this.extention);
                this.barcodeScanner.encode(this.barcodeScanner.Encode.TEXT_TYPE, this.extention).then((ReplaceSource) => {
                  console.log(ReplaceSource);
                  this.myEncodedData = ReplaceSource;
                });

      }

    }
         ]
      });
        await alert.present();
      }

Answer 1

我不确定你是否想要数组作为 "www.youtube.com/"+"watch?v=tAGnKpE4NCI" = ["www.youtube.com/watch?v=tAGnKpE4NCI"] 正如您在示例中设置的那样 "www.youtube.com/"+"watch?v=tAGnKpE4NCI" = ["www.youtube.com/","watch?v=tAGnKpE4NCI"]

但对于第一个，您可以使用 .map 来实现。映射 a，然后在每个循环中使用索引来获取 b 的元素。

const a = ['you', 'insta', 'c', 'd'];
const b = ['loc1', 'loc2', 'loc3', 'loc4'];

var c = a.map(function (d, i) {
    return d + String(b[i])
})

console.log(c)
// ["youloc1", "instaloc2", "cloc3", "dloc4"]

有谁知道如何在 Ionic Storage 中合并 2 个阵列？

Does anyone have an idea about how to merge 2 arrays in Ionic Storage?

typescript

ionic-framework

angular5