no-multi-str.md

Pattern: String with backslash line continuation

Issue: -

Description

Using backslash line continuation in strings is an undocumented legacy feature that can lead to unexpected whitespace issues. Use template literals or string concatenation instead for multiline strings.

Examples

Example of incorrect code:

var str = "Line 1 \
    Line 2";

var message = "Hello \
world";

var x = "Multiple \
        lines \
        here";

Example of correct code:

var str = `Line 1
    Line 2`;

var message = "Hello " +
    "world";

var x = "Multiple " +
    "lines " +
    "here";