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In the cloud (experimental)

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On your computer

(Recommended if you want to store your changes.)

  1. Copy the notebook URL:
  2. Run Pluto

    (Also see: How to install Julia and Pluto)

  3. Paste URL in the Open box

Frontmatter

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Author 1
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using Revise
456 ms
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using PlutoUI
557 ms
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@bind x PlutoUI.PasswordField()
237 ms
""
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x
11.4 μs
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@bind date html"<input type='datetime-local'>"
45.9 ms
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@bind ddd PlutoUI.TimeField()
44.1 ms
""
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ddd
10.7 μs
Error message

MethodError: no method matching format(::Missing, ::String)

Closest candidates are:

format(::Any, ::Dates.Delim, ::Any, ::Any) at /opt/hostedtoolcache/julia/1.7.3/x64/share/julia/stdlib/v1.7/Dates/src/io.jl:256

format(::Any, ::Dates.DatePart{'d'}, ::Any) at /opt/hostedtoolcache/julia/1.7.3/x64/share/julia/stdlib/v1.7/Dates/src/io.jl:165

format(::Any, ::Dates.DatePart{'p'}, ::Any, ::Any) at /opt/hostedtoolcache/julia/1.7.3/x64/share/julia/stdlib/v1.7/Dates/src/io.jl:176

...

Stack trace

Here is what happened, the most recent locations are first:

  1. from This cell: line 1
    Dates.format(alsodate, "Y-m-d")
Don't panic!
Dates.format(alsodate, "Y-m-d")
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---
missing
date
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9.5 μs
missing
alsodate
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10.9 μs
@bind alsodate html"""
<div id="asdf"></div>
<script>

const d = this.querySelector("#asdf")
d.value = new Date()
d.dispatchEvent(new CustomEvent("input"))
</script>
"""
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665 μs
missing
alsodate
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9.2 μs
Error message

bitcast: expected primitive type value for second argument

Stack trace

Here is what happened, the most recent locations are first:

  1. reinterpret(#unused#::Type{Int64}, x::Missing)
    from essentials.jl:443
  2. from This cell: line 1
    ttt = reinterpret(Int64, alsodate)[1]
ttt = reinterpret(Int64, alsodate)[1]
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---
using Dates
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150 μs
Error message

Another cell defining ttt contains errors.

Computers are hard!
Dates.DateTime(ttt)
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---
Error message

Another cell defining ttt contains errors.

Probably not your fault!
Dates.DateTime(1970) + Dates.Millisecond(ttt)
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---
1.600472743808e12
v = 1600472743808.0
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27.5 μs
reinterpret(UInt8, [v])
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4.5 ms