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Rev

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Output some reserved words

For a computer language, a reserved word is a word that cannot be used as an identifier, such as the name of a variable, function, or label. For other computer languages, keywords can be considered as the set of the language instructions.

Challenge

Using your language of choice, write a code in the chosen language that given a number between one and ten, 1<=n<=10, outputs any n reserved words (keywords) of the chosen language.

Specifics

If the chosen language is case sensitive the outputted keywords must be also.
If the chosen language is not case sensitive the outputted keywords can be in any case.
If the chosen language has less than 10 keywords saying p, the code must output all the reserved words for any n between p and 10.
If possible specify in the answer whether you consider operators as keywords or not.

Possible samples for Java (JDK10)

n=1 --> true
n=3 --> try new interface
n=4 --> continue this long break

Possible samples for ><>

n=1 --> >
n=3 --> > < ^
n=4 --> > < \ /

Possible samples for Brain-Flak

n=1 --> (
n=3 --> ( ) [ ]
n=9 --> ( ) [ ] { } < >

Rules

The input and output can be given in any convenient format.
No need to handle invalid input values, valid inputs are: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.
Either a full program or a function are acceptable. If a function, you can return the output rather than printing it.
If possible, please include a link to an on-line testing environment so other people can try out your code!
Standard loopholes are forbidden.
This is code-golf so all usual golfing rules apply, and the shortest code (in bytes) wins.

Answer*

# [JavaScript (Node.js)], <strike>79</strike> 61 bytes

n=>'true int var for in if new try of do'.split` `.slice(0,n)

[Try it online!][TIO-jg26oyct]

[JavaScript (Node.js)]: https://nodejs.org
[TIO-jg26oyct]: https://tio.run/##Zcg7DsIwDADQnVN4ayxBxH8rZ2mU2igosisnLeL0gRVle3qvsIUSLS31IDpT47HJ@BiqrQRJKmzBgNV@hsQg9IZqH1CGWQdflpzqBJMvOUVyx71giypFM/msT8fuhLj7n3M3l26u3dy6uSO2Lw "JavaScript (Node.js) – Try It Online"

# How :

n => // the input (will be an integer) between 1 and 10 (both inclusive)
 ' // beginning our string 
 true int var for in if new try of do'. // space separated reserved words
 split` `. // turn it into an array every time there is a space we add to array
 slice(0,n) // return elements of array starting from 0 and upto n

If using operators is allowed (most likely will be since they are reserved words) then :

# [JavaScript (Node.js)], <strike>26</strike> 25 bytes

n=>'|/^%+<&*-='.slice(-n)

[Try it online!][TIO-jg3vzima]

[JavaScript (Node.js)]: https://nodejs.org
[TIO-jg3vzima]: https://tio.run/##y0osSyxOLsosKNHNy09J/Z9m@z/P1k69Rj9OVdtGTUvXVl2vOCczOVVDN0/zf3J@XnF@TqpeTn66RpqGoaYmF6qIEYaIMYaICYaIKYaImabmfwA "JavaScript (Node.js) – Try It Online"
Saved 8 bytes thanks to _@Adam_ and 1 more byte thanks to _@l4m2_

# How :

n => // input (integer from 0-9 inclusive)
 '|/^%+<&*-='. // operators make a shorter string 
 slice(-n) // outputs string chars from last upto n 
 // this works since all operators are single chars and not multi chars.

If this is an answer to a challenge…

…Be sure to follow the challenge specification. However, please refrain from exploiting obvious loopholes. Answers abusing any of the standard loopholes are considered invalid. If you think a specification is unclear or underspecified, comment on the question instead.
…Try to optimize your score. For instance, answers to code-golf challenges should attempt to be as short as possible. You can always include a readable version of the code in addition to the competitive one. Explanations of your answer make it more interesting to read and are very much encouraged.
…Include a short header which indicates the language(s) of your code and its score, as defined by the challenge.

More generally…

…Please make sure to answer the question and provide sufficient detail.
…Avoid asking for help, clarification or responding to other answers (use comments instead).

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Edit Summary*

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\$\begingroup\$ n=>'|/^%+<&*-='.substr(-n) \$\endgroup\$

Adám
– Adám

2018年04月16日 11:45:09 +00:00
Commented Apr 16, 2018 at 11:45
\$\begingroup\$ Oh yeah , Lol still golfing. Thanks @Adám. Appreciate it. \$\endgroup\$

Muhammad Salman
– Muhammad Salman

2018年04月16日 11:46:09 +00:00
Commented Apr 16, 2018 at 11:46
3

\$\begingroup\$ I don't think int is a "reserved word" as per the definition in the challenge. You can certainly name a variable int in JavaScript. \$\endgroup\$

kamoroso94
– kamoroso94

2018年04月16日 22:54:06 +00:00
Commented Apr 16, 2018 at 22:54
1

\$\begingroup\$ If I remember well, int is reserved as a possible future keyword by the ECMAScript specification. \$\endgroup\$

BNilsou
– BNilsou

2018年04月17日 12:36:18 +00:00
Commented Apr 17, 2018 at 12:36
\$\begingroup\$ Why substr instead of slice? \$\endgroup\$

l4m2
– l4m2

2018年04月17日 16:21:29 +00:00
Commented Apr 17, 2018 at 16:21

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