如何清除 puppeteer 中的项目值 [英] How to clear an item value in puppeteer

问题描述

我有一个包含多个项目的 iFrame，我想更新记录.

I have an iFrame with several items and i want to update a record.

const frame = await page.frames()[1];
const P1_CUSTOM_NAME = await frame.$('#P1_CUSTOM_NAME');
await P1_CUSTOM_NAME.type('MyFavoritCustomer', {delay: 20});

这不会覆盖 P1_CUSTOM_NAME 字段.不幸的是，它附加了值 'MyFavoritCustomer'.

This will not overwrite the field P1_CUSTOM_NAME. Unfortunately it appends the value 'MyFavoritCustomer'.

对于如何清除项目值有什么建议吗?

Any suggestions how i can clear an item value?

推荐答案

尝试三次单击以聚焦并全选.

Try a triple click to focus and select all.

const frame = await page.frames()[1];
const P1_CUSTOM_NAME = await frame.$('#P1_CUSTOM_NAME');
await P1_CUSTOM_NAME.click({clickCount: 3});
await P1_CUSTOM_NAME.type('MyFavoritCustomer', {delay: 20});

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