Several ways to generate unique IDs in JavaScript

//This time I ran the generated value: 0.5834165740043102 
Math.random();

//Now the timestamp is 1482645606622
Date.now();

//Convert 1482645606622 into binary: 10101100100110100100100001001000011011110 
(1482645606622).toString(2);

//Convert to hexadecimal: 159349090de ObjectID in MongoDB is a 24-digit hexadecimal number (1482645606622).toString(16);

//The maximum base supported is hexadecimal, using characters 0-9a-z: ix48wvry 
(1482645606622).toString(36);

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(){
 return Math.random().toString()
}

//Generate an ID similar to 0.1283460319177394
GenNonDuplicateID()

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(){
 return Math.random().toString(16)
}

//The function will generate an ID like 0.c1615913fa915
GenNonDuplicateID()

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(){
 return Math.random().toString(36)
}

//The function will generate an ID like 0.hefy7uw6ddzwidkwcmxkzkt9
GenNonDuplicateID()

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(){
 return Math.random().toString(36).substr(2)
}

//The function will generate an ID similar to 8dlv9vabygks2cbg1spds4i
GenNonDuplicateID()

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(){
 let idStr = Date.now().toString(36)
 idStr += Math.random().toString(36).substr(2)
 return idStr
}

//The function will generate an ID similar to ix49sfsnt7514k5wpflyb5l2vtok9y66r
GenNonDuplicateID()

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(randomLength){
 let idStr = Date.now().toString(36)
 idStr += Math.random().toString(36).substr(2,randomLength)
 return idStr
}

// GenNonDuplicateID(3) will generate an ID similar to ix49wl2978w
GenNonDuplicateID(3)

/**
 * Generate a unique ID
 */
function GenNonDuplicateID(randomLength){
 return Number(Math.random().toString().substr(2,randomLength) + Date.now()).toString(36)
}
//GenNonDuplicateID() will generate an ID similar to rfmipbs8ag0kgkcogc
GenNonDuplicateID()

/**
 * Generate a unique ID
 * @param { Number } randomLength 
 */
function getUuiD(randomLength){
 return Number(Math.random().toString().substr(2,randomLength) + Date.now()).toString(36)
}