Which pipe would you use to convert text to uppercase in Angular?

The uppercase pipe is the correct choice for converting text to uppercase in Angular. This pipe is specifically designed to transform input strings by converting all characters to their uppercase equivalent, making it suitable for displaying text in a consistent format, such as headings or emphasized content.

Using the uppercase pipe is straightforward; you can simply include it in your Angular template like this: {{ textVariable | uppercase }}. This will render the value of textVariable in uppercase letters wherever it is bound.

The other pipes listed in the question serve different purposes. The slice pipe is used for extracting a portion of a string or array, the currency pipe formats a number as currency, and the date pipe formats a date value into a specific date representation. Each of these serves its own unique role, but none of them are intended for converting text to uppercase.