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Why “0” is not equal to false in if condition in JavaScript ?

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  • Last Updated : 19 Jan, 2023
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The reason behind this behavior is that JavaScript treats non-empty string as true. First, “0” is converted into its boolean value, by automatic type conversion which is true. Therefore, if statement executes. 

Example: This example illustrates why “0” is not equal to false in if() condition


// JavaScript script to demonstrate 
// why “0” is not equal to false in 
// ‘if’ condition 
function GFG() { 
    // Print type of "0" 
    condole.log(typeof "0" ); 
    // Print boolean value of "0" 
    condole.log(Boolean("0") ); 
    // Boolean value of "0" is true so 
    // 'if' part will execute 
    if("0") { 
        condole.log("if part executed"); 
        condole.log("else part executed"); 
// Driver code 


if part executed
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