WebApr 13, 2024 · console.log (num); Answer — 10 Explanation — With the var keyword, you can declare multiple variables with the same name. The variable will then hold the latest value. You cannot do this with let or const since they're block-scoped. Question 2: function sayHi () { console.log (name); console.log (age); var name = 'Ayush'; let age = 21; } sayHi (); WebFeb 21, 2024 · undefined is a property of the global object. That is, it is a variable in global scope. In all non-legacy browsers, undefined is a non-configurable, non-writable property. …
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WebTo get the best cross-browser support, it is a common practice to apply vendor prefixes to CSS properties and values that require them to work. For instance -webkit- or -moz- . We offer two popular choices: Autoprefixer (which processes your CSS server-side) and -prefix-free (which applies prefixes via a script, client-side). WebJan 17, 2024 · Tell us what’s happening: What is wrong with this? It logs into my browser console "undefined just fine. But it won’t pass fcc test 4. Your code so far how to start a stream on twitch with obs
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WebFeb 27, 2024 · I have the metamask extension. When I do typeof (window.ethereum) in the console for a chrome tab, I get the type as object. However if I open mywebpage.html in a … Webtypeof set to true will warn for variables used inside typeof check (Default false). typeof Examples of correct code for the default { "typeof": false } option: WebDec 2, 2024 · In browsers, you can use the this keyword at the top level of your program to reference the global object: this.foo = 123; console.log(this.foo === window.foo); // => true this inside functions running in non-strict mode or … reaching the top of the mountain quotes