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stackoverflow.com › questions › 1010961 › ways-to-slice-a-string

Normally, you would just do:

s = s[:-3] + s[-2:]

The s[:-3] gives you a string up to, but not including, the comma you want removed ("this is a string") and the s[-2:] gives you another string starting one character beyond that comma (" a").

Then, joining the two strings together gives you what you were after ("this is a string a").

Answer from Anurag Uniyal on Stack Overflow

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What is a string slice? How is it useful?

Stuck on a STEM question? Post your question and get video answers from professional experts: A string slice in programming refers to a subset or segment of ...

SamanthaMing

samanthaming.com › basics › string-slice

String - slice() | SamanthaMing.com

const name = 'samantha'; name.slice(0, 3); const string = 'Web Basics'; string.slice(0); // Clone the string // 'Web Basics' string.slice(); // Default is 0, so it will just clone // 'Web Basics' string.slice(-1); // Get the last letter // 's' Let's see some examples with an end argument.

Discussions

python - Ways to slice a string? - Stack Overflow

I have a string, example: s = "this is a string, a" Where a ',' (comma) will always be the 3rd to the last character, aka s[-3]. I am thinking of ways to remove the ',' but can only think of conv... More on stackoverflow.com

stackoverflow.com

What is the difference between String.slice and String.substring?

If either argument is greater than the string's length, the string's length will be used instead. ... If start > stop, then substring will swap those 2 arguments. If either argument is negative or is NaN, it is treated as if it were 0. ... If start > stop, slice() will return the empty string. More on stackoverflow.com

stackoverflow.com

Return slice of struct of string?

Its a bit hard to deduce what the cause is without the lexer code, or a full minimal example. If I do something like this: pub fn lexer(alloc: std.mem.Allocator) ![]Token { var list = std.ArrayList(Token).init(alloc); var x: usize = 0; while(x < 4) : (x += 1) { var token = .{ .label = @intToEnum(Label, x), .value = std.ArrayList(u8).init(alloc) }; try token.value.append(42); try token.value.append(42); try token.value.append(42); try list.append(token); } return list.toOwnedSlice(); } test "lexer" { var arena = std.heap.ArenaAllocator.init(std.testing.allocator); defer arena.deinit(); var result = try lexer(arena.allocator()); try std.testing.expect(result.len == 4); try std.testing.expect(result[0].label == .a); try std.testing.expect(result[0].value.items.len == 3); try std.testing.expect(result[0].value.items[0] == 42); var slice = result[0].value.toOwnedSlice(); // data moved from value.items to the slice try std.testing.expect(result[0].value.items.len == 0); try std.testing.expect(slice.len == 3); try std.testing.expect(slice[0] == 42); } Do note that once you call "toOwnedSlice()" you cannot use "token.value" again to get the data, since you now own that piece of data in the slice, and the ArrayList is emptied. If you only need the slice for some operation and want to keep the data then you can just do value.items to get the current slice of items without "owning" it. More on reddit.com

r/Zig

August 2, 2022

How to keep both a String and it's slice in a struct?

This is a self-referential struct, and it isn't very well supported by rust. Your From implementation only works because you're making a copy of the &'a str you're passing in, but that doesn't seem to be what you want by the title.

What are you trying to do? Maybe you can get the indices from split and save those as an alternative.

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String slicing in JavaScript ✂️【3 minutes】 - YouTube

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