js map arrow code example
Example 1: array map arrow function
materials.map((str) => {
const {length} = str;
return length;
});
Example 2: Arrow Functions
// The usual way of writing function
const magic = function() {
return new Date();
};
// Arrow function syntax is used to rewrite the function
const magic = () => {
return new Date();
};
//or
const magic = () => new Date();
Example 3: arrow function map js
const exampleArray = ['aa','bbc','ccdd'];
console.log(exampleArray.map(a => a.length));
//Would print out [2,3,4]
Example 4: arrow function javascript
const power = (base, exponent) => {
let result = 1;
for (let count = 0; count < exponent; count++) {
result *= base;
}
return result;
};
//if the function got only one parameter
const square1 = (x) => { return x * x; };
const square2 = x => x * x;
// empty parameter
const horn = () => {
console.log("Toot");
};