livecode/docs/dictionary/operator/plus.lcdoc at develop-8.2 · livecode/livecode

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Type: operator
Syntax: <number1> + <number2>
Adds two numbers.
Introduced: 1.0
OS: mac, windows, linux, ios, android
Platforms: desktop, server, mobile
# Adding two literals
put 2 + 2 into fourContainer
# Adding a literal to a variable
set the layer of field myNumber to (myNumber + 2)
# Adding two arrays
local tArray1, tArray2, tArray3
put 5 into tArray1["One"]
put 10 into tArray1["Two"]
put 6 into tArray2["One"]
put 11 into tArray2["Two"]
put tArray1 + tArray2 into tArray3
put tArray3["One"] & comma & tArray3["Two"]
# -&gt; 11,21
Parameters:
The operands number1 and number2 are literal numbers, or expressions
that evaluate to numbers, or arrays containing numbers.
Description:
Use the <+> (plus) <operator> to add two numbers, or to add two
<array|arrays> containing numbers.
To add a number to the contents of a container, use the add <command>
If either <number1> or <number2> is an <array>, each of the <array>
<element(glossary)|elements> must be a number. If a number is added to
an <array>, the number is added to each <element(keyword)>. If an
<array> is added to an <array>, both <array|arrays> must have the same
number of <element(glossary)|elements> and the same dimension, and each
<element(keyword)> in one <array> is added to the corresponding
<element(keyword)> of the other <array>.
If an element of one array is empty, the <+> <operator> treats its
contents as zero.
The option to add arrays was introduced in version 1.1. In previous
versions, only single numbers could be used with the + operator.
References: union (command), sum (function), operator (glossary),
array (glossary), command (glossary), element (glossary),
element (keyword), - (operator), () (operator)

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