core.else
0.000001

Defines an else branch of logic for a corresponding if statement.

Arguments

procrequired

The composition to execute when the branch is matched.

Return Value

The result of the given composition if the else branch is matched, or null.

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Conditionally echoing a value

Setup

authorization=PROCAUTH

require "proc"

client = Proc.connect("PROCAUTH")

const Proc = require("@proc.dev/client");
const client = Proc.connect("PROCAUTH");

composition = client.core.if {
  client.core.echo("is true")
} >> client.core.else {
  client.core.echo("is false")
}

composition.call(false)

let composition = client.core.if(undefined, {}, () => {
  return client.core.echo("is true");
}).compose(
  client.core.else(undefined, {}, () => {
    return client.core.echo("is false");
  }
);

composition.call(false);

curl "https://proc.run/core/exec" --silent \
--header "authorization: bearer $authorization" \
--header "content-type: application/vnd.proc+json" \
--header "accept: text/plain" \
--data '[["$$", "proc", ["{}", ["()", "type.string"], ["()", "type.string.append", [">>", ["%%", "hello"]]]]]]'

is false

Note that core.else can only be composed with core.if.

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core.else0.000001

core.else
0.000001