check if a variable is array in javascript

ByAnurag batra August 6, 2022October 23, 2022

// inside if else check
if(Array.isArray(myVarToTest)) {
	// myVatToTest is an array
} else {
	// myVarToTest is not an array
}

Here is what the above code is Doing:
1. We’re creating a variable called myVarToTest and assigning it a value of an array.
2. We’re using the Array.isArray() method to check if myVarToTest is an array.
3. If myVarToTest is an array, we’re printing out a message saying that it is an array.
4. If myVarToTest is not an array, we’re printing out a message saying that it is not an array.

Javascript Examples

material ui hide asterisk

ByAnurag batra October 8, 2022September 6, 2022

Here is what the above code is Doing: 1. We’re importing the TextField component from the material-ui library. 2. We’re creating a TextField component. 3. We’re setting the InputLabelProps property to an object with a required property set to false. 4. We’re setting the required property to true. The InputLabelProps property is used to set…

Javascript Examples

passport js npm

ByAnurag batra October 7, 2022September 6, 2022

passport.use(new LocalStrategy( function(username, password, done) { User.findOne({ username: username }, function (err, user) { if (err) { return done(err); } if (!user) { return done(null, false); } if (!user.verifyPassword(password)) { return done(null, false); } return done(null, user); }); } )); Here is what the above code is Doing: 1. We’re using the passport-local module to…

Javascript Examples

jquery add br in text

ByAnurag batra October 16, 2022September 6, 2022

$(‘#description’).html(info + ” + footnote); Here is what the above code is Doing: 1. It’s creating a variable called ‘info’ that contains the text that will be displayed in the description box. 2. It’s creating a variable called ‘footnote’ that contains the text that will be displayed in the footnote box. 3. It’s using jQuery…

Javascript Examples

js chai setup

ByAnurag batra October 9, 2022September 6, 2022

const {expect} = chai; const chaiAsPromised = require(“chai-as-promised”); chai.use(chaiAsPromised); chai.should() Here is what the above code is Doing: 1. Importing the chai library 2. Importing the chai-as-promised library 3. Telling chai to use the chai-as-promised library 4. Setting up the chai.should() function Now, let’s write a test that uses the chai-as-promised library.

Javascript Examples

smmoth scroll js

ByAnurag batra October 18, 2022September 6, 2022

Here is what the above code is Doing: 1. The first line is importing the smooth-scroll library. 2. The second line is importing the polyfills for the smooth-scroll library. 3. The third line is importing the polyfills for the smooth-scroll library.

Javascript Examples

jquery is not defined rails

ByAnurag batra October 5, 2022September 6, 2022

//Try adding this to your config/webpack/environment.js const webpack = require(‘webpack’) environment.plugins.prepend(‘Provide’, new webpack.ProvidePlugin({ $: ‘jquery/src/jquery’, jQuery: ‘jquery/src/jquery’ }) ) Here is what the above code is Doing: 1. We’re requiring the webpack plugin 2. We’re adding the plugin to the environment 3. We’re telling the plugin to look for the $ and jQuery variables and…

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