Different kinds of sanitizers for options

sanitizers-jquery-plugin.js

(function ( $ ) {
    $.fn.copyText = function( options ) {
        // copy the text from the chosen element.
        let target = options.textSrcSelector
        let target0 = options.textSrcSelector0
        let target1 = options.textSrcSelector1
        let target2 = options.textSrcSelector2
        let target3 = options.textSrcSelector3
        let target4 = options.textSrcSelector4
        let target5 = options.textSrcSelector5
        let target6 = options.textSrcSelector6

        // the only unsafe option
        let text = $(options.textSrcSelector).text();

        // sanitized variable used directly as the argument to $
        if(typeof target0 != "string"){
            text = $(target0).text();
            }

        // sanitized variable used to only verify
        if(typeof target1 != "string"){
        text = $(options.textSrcSelector1).text();
        }

        // equality check instead of inequality
        if(typeof target2 == "string"){
            text = $(document).find(options.textSrcSelector2).text();
        }
        else
        {
            text = $(options.textSrcSelector2).text();
        }

        // jquery property undefined check
        if (typeof target3.jquery !== "undefined") {
            $(target3).append(x);
        }

        // jquery property undefined check
        if (typeof target4.jquery === "undefined")
        {
            text = $(document).find(target4).text();
        }
        else 
        {
            text = $(target4).text();
        }

        // direct jquery property access check
        if (target5.jquery) {
            text = $(target5).text();
        }

        // negation of direct jquery property access check
        if (!target6.jquery) {
            text = $(document).find(target6).text();
        }
        else{
            text = $(target6).text();
        }

        return this.text(text);
    };
}( jQuery ));