aboutsummaryrefslogtreecommitdiffstats
path: root/docs/guide/basic-types.md
diff options
context:
space:
mode:
authors-ol <s-ol@users.noreply.github.com>2020-06-03 10:50:20 +0000
committers-ol <s+removethis@s-ol.nu>2025-03-02 14:24:49 +0000
commit2a7d979226e98617623b550f207cec0e113ff04d (patch)
tree0e9f2d2c36897af3a2569f287296928ba3bb9cf3 /docs/guide/basic-types.md
parentadd loop/recur (diff)
downloadalive-2a7d979226e98617623b550f207cec0e113ff04d.tar.gz
alive-2a7d979226e98617623b550f207cec0e113ff04d.zip
split guide into guide and reference
Diffstat (limited to 'docs/guide/basic-types.md')
-rw-r--r--docs/guide/basic-types.md59
1 files changed, 0 insertions, 59 deletions
diff --git a/docs/guide/basic-types.md b/docs/guide/basic-types.md
deleted file mode 100644
index c22929c..0000000
--- a/docs/guide/basic-types.md
+++ /dev/null
@@ -1,59 +0,0 @@
-Strings can be written in two ways: using double quotes (`"`), as we did above,
-or using single quotes (`'`). In both types of strings, you can escape a quote
-that otherwise would signify the end of the string by adding a single backslash
-before it. Consequently, backslashes also have to be escaped in the same way.
-The following are all valid strings:
-
- "hello world"
- 'hello world'
- "it's a beautiful day"
- 'it\'s a beautiful day'
- "this is a backslash: \\"
- "this is a double quote: \""
- ""
- ''
-
-Aside from strings, there are two more types of values that you can use when
-writing alv programs: numbers and booleans. Numbers use the digits 0-9 and
-can be integers, contain a decimal point, or start or end with a decimal point.
-Numbers can start with a negetive sign. The following are all valid numbers:
-
- 0
- 12
- -7
- 0.1
- 10.
- .1
- 123.
-
-There are only two boolean values, `true` and `false`:
-
- true
- false
-
-The operator [print][], that we have been using above, only works on strings,
-but there is a similar operator called [trace][] that can be used to inspect
-any kind of value. It prints the value itself alongside more information, such
-as the values type. Give it a try:
-
- (trace "hello")
- (trace 2)
- (trace true)
-
-This will print the following:
-
- changes to files: values.alv
- trace "hello": <str= "hello">
- trace 2: <num= 2>
- trace true: <bool= true>
-
-On the left side of the colon, [trace][] prints the expression that it is
-evaluating. On the right side, three pieces of information are shown:
-
-- the *type*: `str`, `num`, `bool`
-- the *value* itself: `"hello"`, `2`, `true`
-- the *kind* of the result: `=`
-
-`=` means that these values are *constant* - they will not change by themselves
-until the code is changed. For simple values like these that seems obvious, but
-in `alv` we can also create values tha change over time, as we will see soon.