Angular Interview Practice

To display only the first three characters of a string, which pipe would you use?

1. Uppercase

2. Slice

3. Date

4. Json

The correct answer is: Slice

The pipe used to display only the first three characters of a string is the Slice pipe. This pipe allows you to extract a portion of a string or an array based on the specified start and end indices. In the case of a string, you can use it to get any subset of characters. When you apply the Slice pipe to a string and set the parameters to 0 and 3, it will return the characters from index 0 up to, but not including, index 3. This effectively gives you the first three characters of that string, which is precisely what is needed for the task at hand. For instance, if you had a string "Angular", using the Slice pipe as `{{ 'Angular' | slice:0:3 }}` would yield "Ang". This demonstrates the versatility of the Slice pipe in manipulating both strings and arrays, but in this context, it is specifically aimed at truncating the string. The other pipes listed serve different purposes. The Uppercase pipe converts the entire string to uppercase, the Date pipe formats a date object into a human-readable format, and the Json pipe converts a JavaScript object into a JSON string for display. None of these would achieve the goal of displaying only a specific portion of the