How to convert an array of objects to object with key value pairs

With modern JS (YMMV):

1. Split each object into entries
2. Aggregate all entries into one object

const arr = [{name1:"value1"}, {name2:"value2"}, {a:1,b:2}];
const obj = Object.fromEntries(arr.flatMap(Object.entries));
console.log(obj);

Try this simple logic

var arr=[{"name1":"value1"},{"name2":"value2"}];
var obj = {}; //create the empty output object
arr.forEach( function(item){ 
   var key = Object.keys(item)[0]; //take the first key from every object in the array
   obj[ key ] = item [ key ];  //assign the key and value to output obj
});
console.log( obj );

You could use Object.assign and a spread syntax ... for creating a single object with the given array with objects.

var array = [{ name1: "value1" }, { name2: "value2" }],
    object = Object.assign({}, ...array);
    
console.log(object);

You could run a reduce over the array and return a new object. But it is important to remember that if properties are the same they will be overwritten.

const newObject = array.reduce((current, next) => {
  return { ...current, ...next};
}, {})

If you are using es5 and not es6:

var newObject = array.reduce(function(current, next){
  return Object.assign({}, current, next);
}, {})