npm-install-exact-version-from-depdency-list

//form a npm depency list extract the exact version a generate a string for npm install
var obj = { "@angular/common": "^2.4.0",
    "@angular/compiler": "^2.4.0",
    "@angular/core": "^2.4.0",
    "@angular/forms": "^2.4.0",
    "@angular/http": "^2.4.0",
    "@angular/material": "^2.0.0-beta.1",
    "@angular/platform-browser": "^2.4.0",
    "@angular/platform-browser-dynamic": "^2.4.0",
    "@angular/router": "~3.4.0",
    "@angular/upgrade": "^2.1.0", }


var str = "";
for (var i in obj) {
    str+= " " + i + '@' + obj[i].replace(/(~|\^)/g,'')
}