42 lines
1.4 KiB
Markdown
42 lines
1.4 KiB
Markdown
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# statements, operators, and libaries
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Statements, operators, and libraries. #docs #statements #operators #library
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### @parent js/language
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TouchDevelop functions include statements and operators.
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### Statements
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TouchDevelop statements include:
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* [break](/microbit/js/break), to exit a loop before it has completed, usually used in conjunction with an [if](/microbit/reference/logic/if) statement
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* [if](/microbit/reference/logic/if) conditional statement
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* [for](/microbit/reference/loops/for) and [while](/microbit/js/while) loops
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* [function](/microbit/js/function)
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* [return](/microbit/js/return)
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* [var](/microbit/reference/variables/var) (local variable declaration)
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### Operators
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TouchDevelop operators include:
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* [assignment operator](/microbit/reference/variables/assign) `:=` (to update variables)
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* arithmetic operators (`+`, `-`, `*`, `/`, mod) operate on [Numbers](/microbit/reference/types/number)
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* comparison operators (such as `>`, `=`) operate on [Numbers](/microbit/reference/types/number)
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* boolean operators (`not`, `or`, `and`) operate on [Booleans](/microbit/reference/types/boolean)
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* concat operator combines [Strings](/microbit/reference/types/string)
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### Libraries
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Libraries provide additional functions:
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* the [micro:bit library](/microbit/js/contents)
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* the [math](/microbit/js/math) and [bits](/microbit/js/bits) libraries
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### see also
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[TouchDevelop Documentation](/microbit/js/contents), [comments](/microbit/js/comment)
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