What is Accidental Global Variable in JavaScript

Don't skip, watch till the end to understand the flow. Since there is no comma in between a and b variable you will see how accidental global variables gets created in Javascript. This is a interview question. #accidentalglobalvariable, #javascript, #scope, #globalvariable, #variabledeclaration, #variablescope, #globalnamespace, #variablehoisting, #strictmode, #accidentalglobal, #undeclaredvariable, #globalpollution, #windowobject, #variableshadowing, #javascriptbug, #bestpractices, #variableisolation, #localvariable, #lexicalscope, #globalkeyword Your Qeries: What are accidental global variables in JavaScript? How do accidental global variables impact code? What causes accidental global variables? What risks are associated with accidental global variables? How can accidental global variables lead to naming conflicts? What role does the global object play in accidental global variables? How does strict mode prevent accidental global variables? What are best practices for avoiding accidental global variables? How do accidental global variables affect program behavior? Are there tools to detect accidental global variables?