I still find myself writing code like the one below:
function myFunction(name) {
if (typeof name !== 'undefined') {
name = "unknown person";
}
}
Even if with the ES6 default values for paramters the code can be made just into this:
function myFunction(name = "unknown person") {
// code here
}
And we can have the default values even when using the destructuring statements.
Let's say that we have:
const myName = {
first: "Js",
last: "Craft",
};
const { prefix, first, last } = myName;
console.log(prefix + " " + first + " " + last);
// will output: undefined Js Craft
// because prefix is not set in the myName obj
But, if we define default values for the destructed properties:
const myName = {
first: "Js",
last: "Craft",
};
const { prefix = "Mr", first, last } = myName;
console.log(prefix + " " + first + " " + last);
// it will output: Mr Js Craft
So, keep calm and use default values!
📖 50 Javascript, React and NextJs Projects
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📖 50 Javascript, React and NextJs Projects
Learn by doing with this FREE ebook! Not sure what to build? Dive in with 50 projects with project briefs and wireframes! Choose from 8 project categories and get started right away.