A brief explanation to what hoisting means in the JavaScript programming languageJavaScript before executing your code parses it, and adds to its own memory every function and variable declarations it finds, and holds them in memory. This is called hoisting....
var f=parseFloat(x);if(isNaN(f)) {returnfalse; } var f= Math.round(x*100)/100; var s=f.toString(); var rs= s.indexOf('.');if(rs < 0) { rs = s.length; s += '.'; }while(s.length <= rs + 2) { s += '0'; }returns; }//toFixed()var num=22.127456; alert( ...
There are several precedents for naming constants (in enums or elsewhere): Traditionally, JavaScript has used all-caps names, which is a convention it inherited from Java and C:Number.MAX_VALUE Well-known symbols are camel-cased and start with lowercase letters because they are related to prope...
Survey123 Connectgets bumped to version 3.12 as well. For Windows users, just a reminder that Survey123 Connect is now available in the Microsoft Store. It is a good idea to install Connect from the Microsoft Store as the upgrade process does not require you to uninstall the previous version...
This takes me to thepoint Morton Jervens was making about not everything that counts can be counted and data does not always equal statistics. While there is truth in that, I would say that much more that counts can be counted and much more of data can be turned into statistics if you...
map.GetDirections(["Microsoft", "Everett WA", "Bellingham WA"], options); } //This method fires on once the route is calculated. function onGotRoute(route) { var legs = route.RouteLegs; var turns = "Total distance: " + route.Distance.toFixed(1) + " mi"; var numTurns = 0; var...
What does "object destructuring" mean and what is the result of a destructuring operation?Say you have an object with some properties:const person = { firstName: 'Tom', lastName: 'Cruise', actor: true, age: 57 }You can extract just some of the object properties and put them into ...
null and undefined are JavaScript primitive types.The meaning of undefined is to say that a variable has declared, but it has no value assigned.let age //age is undefinedlet age = null //age is nullNote: accessing a variable that’s not been declared will raise a ReferenceError: <...
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