talha08

let courses = [  
   {  
      "title":"ttile 1",
      "id":"1",
      "course_cat":"introduction"
   },
   {  
      "title":"title 2",
      "id":"2",
      "course_cat":null

talha08

Problem: 
[Predis\Response\ServerException]                                                                                                                                                                          
MISCONF Redis is configured to save RDB snapshots, but is currently not able to persist on disk. Commands that may modify the data set are disabled. Please check Redis logs for details about the error.  
      

Solution : 
redis-cli
config set stop-writes-on-bgsave-error no

talha08

angular.module('itemServices', ['ngResource'])
  .factory('Item', ['$resource',
    function ($resource) {
      return $resource('items/:id',
        {id: '@id'},
        {
          query: {
            isArray: true,
            method: 'GET',
            params: {},

talha08

SQL to MongoDB Mapping Chart

SQL to MongoDB Mapping Chart¶

In addition to the charts that follow, you might want to consider the Frequently Asked Questions section for a selection of common questions about MongoDB.

Executables¶

The following table presents the MySQL/Oracle executables and the corresponding MongoDB executables.

talha08

console.warn('test')
console.info('test')
console.log('test')
console.error('test')
console.trace('test')
console.count('test')



console.group('test')

talha08

const student = {
    firstname: 'Jhon',
    lastname: 'Snow',
    country: 'England'
};

const { firstname, lastname, country } = student;
console.log(`We are talking about ${firstname} ${lastname}, who came from ${country}`)
//"We are talking about Jhon Snow, who came from England"

talha08

const student = {
    firstname: 'Jhon',
    lastname: 'Snow',
    ielts_scores: {
      speaking: 8,
      listening: 7.5,
      writing: 8.5,
      reading: 7.0
    }
};

talha08

const student = {
    firstname: 'Jhon',
    lastname: 'Snow',
    country: 'England'
};

const { firstname:firstName, lastname:lastName, country:origin} = student;
console.log(`We are talking about ${firstName} ${lastName}, who came from ${origin}`)
//"We are talking about Jhon Snow, who came from England"

talha08

const student = {
    firstname: 'Jhon',
    lastname: 'Snow',
};

const { firstname, lastname, country = "Bangladeh" } = student;
console.log(`We are talking about ${firstname} ${lastname}, who came from ${country}`)
//"We are talking about Jhon Snow, who came from Bangladeh"

talha08

const student = {
    firstname: 'Jhon',
    lastname: 'Snow',
    country: 'England',
    ielts_scores: {
      speaking: 8,
      listening: 7.5,
      writing: 8.5,
      reading: 7.0
    }