JAVASCRIPT

loop through elements by name js

// ES6 solution
const children = [...parent.getElementsByTagName('tag')];
children.forEach((child) => { /* Do something; */ });

loopover iterate elements by name js

for(var x=0; x < boxesEL.length; x++)   // comparison should be "<" not "<="
{
    boxesEL[x].value = "some value";
}