December 22, 2022
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JavaScript tricks

JavaScript tricks


→ Use ~~ to quickly trim the decimal part in a number 
~~25.2 => 25 ↓

→ Filter falsy values quickly const arr = [1, 0, 2, '', 3, null, 4]; const filtered = arr.filter(Boolean); // filtered: [1, 2, 3, 4]

→ Convert a string to a number type 
const years = '17'; 
const age = +years; 
// years: '17' 
// age: 17 

→ Convert a value to a boolean type 
const isPresent = 'yes'; 
!!isPresent; // true

For more tricks check this full article with 10 interesting JavaScript tricks


By aem4beginner

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