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I am trying to find a function for select e.g. first 100 chars of the string. In PHP, there exists the substr function
Does Ruby have some similar function?
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Accessing Characters Within a String You can also access a single character from the end of the string with a negative index. -1 would let you access the last character of the string, -2 would access the second-to-last, and so on. This can be useful for manipulating or transforming the characters in the string.
In Ruby, we can permanently delete characters from a string by using the string. delete method. It returns a new string with the specified characters removed.
To access the first n characters of a string in ruby, we can use the square brackets syntax [] by passing the start index and length. In the example above, we have passed the [0, 3] to it. so it starts the extraction at index position 0 , and extracts before the position 3 .
Try foo[0...100], any range will do. Ranges can also go negative. It is well explained in the documentation of Ruby.
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