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character encoding

soft tabs

When indenting content we can use a tab or a space - A tab is a single character that represents a configurable amount of space. Each tool, such as your editor, code browser like GitHub, or your terminal can use a different amount of indentation for each tab. Because of this many developers prefer to use spaces to indent their code. A soft tab is a set of spaces entered into a document when you press the tab key on the keyboard. So if your indentation is two spaces each, pressing tab with soft tabs on would just insert two spaces. This keeps indentation simple while also enforcing the amount of space used.