When using Browserify, it is recommended to integrate Gulp into your workflow. For a more customized transformation with the Stringify plugin, you can define a personalized minifyOptions object. One interesting option to consider is ignoreCustomComments
, which allows you to specify an array of regular expressions to prevent certain comments from being removed.
browserify({
entries: 'index.js', extensions: ['.js'], watch: config.watching
})
.transform(babelify, {presets: ['es2015']})
.transform(stringify, {
appliesTo: {includeExtensions: ['.html']},
minify: true,
minifyOptions: {
ignoreCustomComments: [/^(\s*ko)/, /^(\s*\/ko)/]
}
})
The regex pattern [/^(\s*ko)/, /^(\s*\/ko)/]
will specifically preserve comments that begin with whitespace followed by 'ko' or '/ko' comment bindings. By setting the minifyOptions to a new object, the default settings are overridden and need to be redefined as necessary. More details on these configurations can be found here
Example Usage:
<!-- This comment will be removed -->
<!-- ko if: true -->
<h4>This content will be displayed</h4>
<!-- /ko -->
<!-- ko if: false -->
<h4>This content will NOT be displayed</h4>
<!-- /ko -->