![]() ![]() JS Graphics JS Graphics JS Canvas JS Plotly JS Chart.js JS Google Chart JS D3. First, ignoring the case when comparing to the empty string is useless. JS vs jQuery jQuery Selectors jQuery HTML jQuery CSS jQuery DOM The first operand tests that queue is not equal, ignoring the case, to the empty string. If length is equal to length of your array than all objects are different. You simply create new HashSet with objects contained in the array and after that verify the length of created set. 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 I think you need to use Set to verify is there is any equals objects in the array. The naming of variables, and in your example, methods is what is important. JS AJAX AJAX Intro AJAX XMLHttp AJAX Request AJAX Response AJAX XML File AJAX PHP AJAX ASP AJAX Database AJAX Applications AJAX Examples No, there is absolutely nothing wrong with using the operator in if.then.else statements. ![]() Result - Logical value Returns a true, if the first number is less than or equal to the second, otherwise false. par1 - Any number par2 - Any number Output. It returns a boolean result after the comparison and is extensively used in looping statements and conditional if-else statements. Java - Less than or equal to: < Less than or equal to operator is a logical operator that is used to compare two numbers. The main advantage is that you can copy-paste the queries and test them in SQL directly. Yet, for queries that do not have parameters, this works pretty neat. The return value is true if the two values are equal both in value and datatype, else, the return vale is false. In Simple terms, cond1 & cond2 returns true when both cond1 and cond2 are true (i.e. operator is a type of Relational Operator in Java used to check for relations of equality. Notice that I had to escape the hash parameter, which admittedly makes it less readable. Equal Value Equal Type operator returns a boolean value. If even one of the two yields false, the operator results false. ![]() JS Web APIs Web API Intro Web Forms API Web History API Web Storage API Web Worker API Web Fetch API Web Geolocation API Logical ‘AND’ Operator (&) This operator returns true when both the conditions under consideration are satisfied or are true. The strict inequality operator checks whether its operands are not equal. 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