Escapes the value for insertion in Javascript output.
For example:
{{ value|escapejs }}
When the value is he'llo then the output is he\x27llo.
Internally, this calls z_utils:js_escape/1 to perform the escaping.
Note: when generating JSON output, be sure to use escapejson, as JSON escaping is subtly different from JS escaping.
See also
filter-escape, escapejson