量角器：如何像我们在 java getText.trim() 中使用的那样从字符串中删除额外的空间

Question

How to remove extra space from string just like we use in java getText.trim() in Protractor ,
I used like this:

var columnvalue=rows.get(9).getText();
var columnvalue1=columnvalue.trim();

but i got error: Object [object Object] has no method 'trim'

Answer 1

Andreas' solution is basically correct. I'm just appending some additional info.

I'm not sure what you're using the trim for, but

1) if you're trying to put it into an assertion:

expect(rows.get(9).getText()).toMatch('\s*STRING_TO_MATCH\s*')

or simply

expect(rows.get(9).getText()).toContain('STRING_TO_MATCH')

2) If you want a promise that returns the trimmed value

var columnvalue=rows.get(9).getText();
var columnvalue1=columnvalue.then(function(text) {return text.trim();})

Answer 2

The getText() method returns a Promise object. You need to do like this to get the string:

rows.get(9).getText().then(function(text) {
  console.log(text.trim());
});

If you look at the error you got you will see that it's trying to access the method trim() of an object, not a string.

Answer 3

使用 async/await，您可以像这样解析 promise 并直接调用trim() 。

expect((await page.getElement().getText()).trim()).toBe('');