`......................
..#................#..
..#..............=.#..
..#.........o.o....#..
..#.@......#####...#..
..#####............#..
......#++++++++++++#..
......##############..
......................`.trim()
When I trim the above, it gives me this:
"......................
..#................#..
..#..............=.#..
..#.........o.o....#..
..#.@......#####...#..
..#####............#..
......#++++++++++++#..
......##############..
......................"
From my understanding, trim removes the whitespace from the beginning and end of the string like in " helloworld ", the trim will be "helloworld". Now I want to know about the first example that I've defined up above.
First of all, is it even a string because I see backticks there. And if I try to give it quotes the trim won't work. I can't understand or see how it is trimmed. The example is from the platform game in Eloquent JavaScript.
This is not valid in js:
"......................
..#................#..
..#..............=.#..
..#.........o.o....#..
..#.@......#####...#..
..#####............#..
......#++++++++++++#..
......##############..
......................"
This is (as Kunal Mukherjee pointed out in the comments you have to use template literals, which support multiple lines):
`......................
..#................#..
..#..............=.#..
..#.........o.o....#..
..#.@......#####...#..
..#####............#..
......#++++++++++++#..
......##############..
......................`
To answer the question in your title, to check if a string is trimmed you can do this:
function isTrimmed(str) {
return str == str.trim();
}
const foo = `......................
..#................#..
..#..............=.#..
..#.........o.o....#..
..#.@......#####...#..
..#####............#..
......#++++++++++++#..
......##############..
......................`;
console.log(isTrimmed(foo));
console.log(isTrimmed(" Text with space "));