The 4 rules of 'this' in JavaScript (memorize forever)
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The 4 rules of 'this' in JavaScript (memorize forever)
'this' in JavaScript depends on who's calling. Memorize four rules and you're done forever. What's covered: • Rule 1 — regular function call: this is undefined (strict) or the global object. • Rule 2 — method call: this is the object before the dot. • Rule 3 — arrow function: this is inherited from the enclosing scope. • Rule 4 ...
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