javascript function
// variable:
var num1;
var num2;
// function:
function newFunction(num1, num2){
return num1 * num2;
}javascript function
// variable:
var num1;
var num2;
// function:
function newFunction(num1, num2){
return num1 * num2;
}js function
function name(parameter1, parameter2, parameter3) {
// what the function does
}functions in javascript
function myFunction(var1, var2) {
return var1 * var2;
}
3
How to create a function in javascriptJavascript By TechWhizKid on Apr 5 2020
function addfunc(a, b) {
return a + b;
// standard long function
}
addfunc = (a, b) => { return a + b; }
// cleaner faster way creating functions!function()
A function in JavaScript is similar to a procedure—a set of statements that performs a task or calculates a value, but for a procedure to qualify as a function, it should take some input and return an output where there is some obvious relationship between the input and the output.javascript function
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// FUNCTION DECLARATION (invoking can be done before declaration)
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function calcAge1(birthYear) {
return 2037 - birthYear;
}
const age1 = calcAge1(1991);
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// FUNCTION EXPRESSION (invoking canNOT be done before declaration)
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const calcAge2 = function (birthYear) {
return 2037 - birthYear;
}
const age2 = calcAge2(1991);
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
// ARROW FUNCTION (generally used for one-liner functions)
// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
const calcAge3 = birthYear => 2037 - birthYear;
const age3 = calcAge3(1991);
console.log(age3);Copyright © 2021 Codeinu
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