Disallow whitespace before properties
Some problems reported by this rule are automatically fixable by the --fix command line option
JavaScript allows whitespace between objects and their properties. However, inconsistent spacing can make code harder to read and can lead to errors.
foo. bar .baz . quz
This rule disallows whitespace around the dot or before the opening bracket before properties of objects if they are on the same line. This rule allows whitespace when the object and property are on separate lines, as it is common to add newlines to longer chains of properties:
foo
.bar()
.baz()
.qux()
Examples of incorrect code for this rule:
/*eslint no-whitespace-before-property: "error"*/
foo [bar]
foo. bar
foo .bar
foo. bar. baz
foo. bar()
.baz()
foo
.bar(). baz()
Examples of correct code for this rule:
/*eslint no-whitespace-before-property: "error"*/
foo.bar
foo[bar]
foo[ bar ]
foo.bar.baz
foo
.bar().baz()
foo
.bar()
.baz()
foo.
bar().
baz()
Turn this rule off if you do not care about allowing whitespace around the dot or before the opening bracket before properties of objects if they are on the same line.
This rule was introduced in ESLint v2.0.0-beta.1.
© OpenJS Foundation and other contributors
Licensed under the MIT License.
https://eslint.org/docs/latest/rules/no-whitespace-before-property