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let numOne = 1; let numTwo = 2; if(numeOne >= numTwo){ yourFunction(); } Here is what the above code is Doing: 1. We create a variable called numOne and assign it the value of 1. 2. We create a variable called numTwo and assign it the value of 2. 3. We create an if statement…

function func() { if (conditionToStopFunction) return; //Nothing after return will be executed console.log(“Hello World”); //This will not be executed if ‘conditionToStopFunction’ is true } Here is what the above code is Doing: 1. The function is called 2. The function checks if the condition is true 3. If the condition is true, the function returns…

mongoose.set(‘useCreateIndex’, true); Here is what the above code is Doing: 1. We’re importing the mongoose library. 2. We’re connecting to the database. 3. We’re telling mongoose to use the built-in JavaScript Promise library. 4. We’re telling mongoose to use the ES6 implementation of promises. 5. We’re telling mongoose to use createIndex instead of ensureIndex.

$(this).find(‘:selected’).data(‘id’) Here is what the above code is Doing: 1. We’re using the .each() method to loop through each of the select elements. 2. We’re using the .find() method to find the selected option. 3. We’re using the .data() method to get the data-id attribute of the selected option.

const oldString = ‘John1Doe2′ const stringBetweenCharacters = oldString.match(/1(.*?)2/i)[1] //Doe Here is what the above code is Doing: 1. We’re using the match() method to find the string between the characters 1 and 2. 2. We’re using the i flag to make the search case-insensitive. 3. We’re using the (.*?) pattern to find any character (except…

const input = props => { let textInput = React.createRef(); function handleClick() { console.log(textInput.current.value); } return ( ) } Here is what the above code is Doing: 1. We create a ref called textInput. 2. We pass the ref to the input element. 3. We use the ref in the handleClick function to get the…