![]() ![]() The Difference Between = and = In JavaScriptīe sure to mess around with console using different types of data until you get it down to a science, if you are still confused then be sure to check out Mozilla’s Comparison Operators page which goes into further detail. When testing if “55” != 55 with the != operator, the answer returned will be true because the string “55” is not strictly equal to the integer 55. You can also compare if something is “!=” (not equal to) something else, and if something is “!=” (strictly not equal to) something else. You can even test your JavaScript just using variables! Just clear your console by right-clicking then pressing “Clear console”, then try it out! What about the != operator and !=? The Difference Between = and = In JavaScript And yet, when you pass “55” = 55 the result is true. Type in “55” = 55 and you’ll see it returns false. From there you will be able to perform logic tests using JavaScript. Open DevTools by pressing down Command+Shift+I (Mac) or by right-clicking anywhere on the screen and selecting “Inspect”.Check out this Chrome’s DevTools Tutorial if you’d like to learn more. And they allow you to use their console feature to perform logic tests, write simple functions and much more. They allow you to edit any website locally in real time. = on my own?Īnswer: Learn Chrome’s DevTools ! DevTools (also known as Web Inspector) is a web developer’s best friend. In this case, it would return false, because a string is not the same data type as an integer. Earlier I mentioned that we will be using the numbers “55” and 55, except, “55” is not an integer, it is a string, whereas 55 is an integer because it is not encapsulated by quotation marks.įor example, this means that if you have the numbers 55 and “55” and try comparing them with the “=” operator that it will not only compare the contents of the two data or variables you pass to it, it will also compare the typeof variable or data it is. JavaScript counts anything that is in between the two quotation marks as a string. The “=” operator compares both content and type, whereas “=” compares only content. ![]() With “=”, JavaScript does not care what data type (string or integer) you pass to it as long as the content that you provided it with matches. The result will always return either true or false. ![]() This means that you can perform logic tests to see if one thing is equal to another thing. In JavaScript, the “=” operator is a comparison operator. First things first, we need to understand what operators are, as well as how they work in JavaScript. Plenty of people struggle with which of these two JavaScript operators you should use so don’t feel bad that you don’t know the difference. If you aren’t sure what the difference between = and = are in JavaScript, you aren’t alone. ![]() Adjunct Prof at Columbia University Business School. If( ( key ) != -1 )else if( Object.keys().Chris Castiglione Follow Co-founder of Console.xyz. I was pouring through the source of the THREEx extension library built on top of Three.JS and noticed this function = function(keyDesc) I am getting back into web development, and have been trying to go over the nuances of jscript recently. ![]()
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