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Function executes only the once function for the first time

2022-04-23 13:47:00 【Everything wins sy】


// Execute the function only once 
    function once(fn){
    
        var ifFalse = true
        return function(){
    
            if(ifFalse){
    
                ifFalse = false
                fn()
            }
        }
    }
    // call 
    function getName(){
    
        console.log(' My name is Chihuahua ')
    }
    getName = once(getName)
    getName() //' My name is Chihuahua '
    getName() // Don't execute