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# spec/ysh-methods
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## our_shell: ysh
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# later we may make it mandatory
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if ("abc" => startsWith("a")) {
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echo yes
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}
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var mylist = [1, 2, 3]
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# This one should be ->
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call mylist->pop()
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echo 'ok'
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## STDOUT:
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yes
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ok
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## END
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func dictfunc() {
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return ({k1: 'spam', k2: 'eggs'})
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}
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echo $[list(dictfunc()) => join('/') => upper()]
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# This is nicer and more consistent
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echo $[dictfunc() => list() => join('/') => upper()]
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## STDOUT:
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K1/K2
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K1/K2
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## END
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pp line ("abc" => startsWith(""))
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pp line ("abc" => startsWith("a"))
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pp line ("abc" => startsWith("z"))
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## status: 0
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## STDOUT:
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(Bool) true
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(Bool) true
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(Bool) false
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## END
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= "abc" => startsWith()
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## status: 3
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= "abc" => startsWith("extra", "arg")
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## status: 3
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= "abc"->doesNotExist()
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## status: 3
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var en2fr = {}
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setvar en2fr["hello"] = "bonjour"
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setvar en2fr["friend"] = "ami"
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setvar en2fr["cat"] = "chat"
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pp line (en2fr => keys())
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## status: 0
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## STDOUT:
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(List) ["hello","friend","cat"]
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## END
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var en2fr = {}
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setvar en2fr["hello"] = "bonjour"
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setvar en2fr["friend"] = "ami"
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setvar en2fr["cat"] = "chat"
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pp line (en2fr => values())
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## status: 0
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## STDOUT:
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(List) ["bonjour","ami","chat"]
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## END
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const check = "abc" => startsWith
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pp line (check("a"))
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## status: 0
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## STDOUT:
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(Bool) true
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## END
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var is_a_ref = { "foo": "bar" }
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const f = is_a_ref => keys
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pp line (f())
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setvar is_a_ref["baz"] = 42
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pp line (f())
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var is_a_val = "abc"
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const g = is_a_val => startsWith
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pp line (g("a"))
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setvar is_a_val = "xyz"
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pp line (g("a"))
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## status: 0
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## STDOUT:
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(List) ["foo"]
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(List) ["foo","baz"]
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(Bool) true
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(Bool) true
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## END
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var items = [1, '2', 3, { 'a': 5 }]
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json write (items => indexOf('a'))
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json write (items => indexOf(1))
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json write (items => indexOf('2'))
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json write (items => indexOf({'a': 5}))
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## STDOUT:
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-1
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0
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1
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3
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## END
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var items = [1, 2, 3]
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json write (items => join()) # default separator is ''
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json write (items => join(" ")) # explicit separator (can be any number or chars)
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json write (items => join(", ")) # separator can be any number of chars
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try {
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json write (items => join(1)) # separator must be a string
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}
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echo "failed with status $_status"
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## STDOUT:
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"123"
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"1 2 3"
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"1, 2, 3"
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failed with status 3
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## END
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var empty = []
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var a = [0]
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var b = [2, 1, 3]
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var c = :| hello world |
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call empty->reverse()
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call a->reverse()
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call b->reverse()
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call c->reverse()
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json write --pretty=F (empty)
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json write --pretty=F (a)
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json write --pretty=F (b)
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json write --pretty=F (c)
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## STDOUT:
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[]
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[0]
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[3,1,2]
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["world","hello"]
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## END
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var x = list(0 .. 3)
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call x->reverse()
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write @x
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## STDOUT:
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2
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1
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0
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## END
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