multiline-strings.qdoc

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// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GFDL-1.3-no-invariants-only
 
/*!
\page qmllint-warnings-and-errors-multiline-strings.html
\ingroup qmllint-warnings-and-errors
 
\title Multiline strings
\brief [multiline-strings] A string is spanning over multiple lines.
 
\qmllintwarningcategory multiline-strings
 
\section1 String contains unescaped line terminator, which is deprecated
 
\section2 What happened?
A string spans over multiple lines.
 
\section2 Why is this bad?
Strings spanning multiple lines are a non-standard extension
of ECMAScript and deprecated in QML. Use template literals instead.
 
\section2 Example
\qml
import QtQuick
 
Item {
    property string multiLine: "first
second
third"
 
    property string multiLine2: 'first
second
third'
}
 
\endqml
To fix this warning, use template literals or, alternatively,
replace the newlines with '\n':
\qml
import QtQuick
 
Item {
    property string multiLine: `first
second
third`
    property string multiLine2: `first
second
third`
 
    property string alternative: "first\nsecond\nthird"
    property string alternative2: "first\n" +
"second\n" +
"third"
}
\endqml
*/