JS Graphics JS Graphics JS Canvas JS Plotly JS Chart.js JS Google Chart JS D3. JS vs jQuery jQuery Selectors jQuery HTML jQuery CSS jQuery DOM JS JSON JSON Intro JSON Syntax JSON vs XML JSON Data Types JSON Parse JSON Stringify JSON Objects JSON Arrays JSON Server JSON PHP JSON HTML JSON JSONP So that statement always (not taking into account schrdingers law here) returns true. And if it is C or literally anything else, it is also not A and not B. ![]() If it is A, it is definitely not also B and if it is B it is definitely not A. JS AJAX AJAX Intro AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples You are asking if the value of a string is not A or Not B. JS Web APIs Web API Intro Web Forms API Web History API Web Storage API Web Worker API Web Fetch API Web Geolocation API The SUMPRODUCT function is designed to multiply and then sum multiple arrays. The JavaScript not equal or inequality operator () checks whether two values are not equal and returns a boolean value. Then we use a double negative (-) to coerce TRUE to 1 and FALSE to zero. JS Browser BOM JS Window JS Screen JS Location JS History JS Navigator JS Popup Alert JS Timing JS Cookies In the resulting array, TRUE values correspond to N/A errors (values not matched) and FALSE values correspond to the numbers (matched values). JS HTML DOM DOM Intro DOM Methods DOM Document DOM Elements DOM HTML DOM Forms DOM CSS DOM Animations DOM Events DOM Event Listener DOM Navigation DOM Nodes DOM Collections DOM Node Lists JS Async JS Callbacks JS Asynchronous JS Promises JS Async/Await SQL Not Equal is a comparison operator used to compare two not null operand values or an expression, if the left operand value is not equal to the right. JS Classes Class Intro Class Inheritance Class Static JS Functions Function Definitions Function Parameters Function Invocation Function Call Function Apply Function Bind Function Closures JS Objects Object Definitions Object Properties Object Methods Object Display Object Accessors Object Constructors Object Prototypes Object Iterables Object Sets Object Maps Object Reference So any non-zero value is considered true and zero is considered false. Since C doesn't have a true boolean type, any integer value (which includes character constants) can be an operand to. JS Tutorial JS HOME JS Introduction JS Where To JS Output JS Statements JS Syntax JS Comments JS Variables JS Let JS Const JS Operators JS Arithmetic JS Assignment JS Data Types JS Functions JS Objects JS Events JS Strings JS String Methods JS String Search JS String Templates JS Numbers JS BigInt JS Number Methods JS Number Properties JS Arrays JS Array Methods JS Array Sort JS Array Iteration JS Array Const JS Dates JS Date Formats JS Date Get Methods JS Date Set Methods JS Math JS Random JS Booleans JS Comparisons JS If Else JS Switch JS Loop For JS Loop For In JS Loop For Of JS Loop While JS Break JS Iterables JS Sets JS Maps JS Typeof JS Type Conversion JS Bitwise JS RegExp JS Precedence JS Errors JS Scope JS Hoisting JS Strict Mode JS this Keyword JS Arrow Function JS Classes JS Modules JS JSON JS Debugging JS Style Guide JS Best Practices JS Mistakes JS Performance JS Reserved Words If the first operand compares unequal to 0, the second operand is not evaluated.
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