regex contains string in end

ByAnurag batra August 6, 2022June 30, 2022

/.*\.pdf$/

Here is what the above code is Doing:
1. We’re importing the Python module called re.
2. We’re creating a regular expression that will match any string that contains the text “pdf”.
3. We’re creating a regular expression that will match any string that ends with “.pdf”.
4. We’re creating a regular expression that will match any string that starts with “http://” and ends with “.pdf”.
5. We’re creating a regular expression that will match any string that starts with “http://” and ends with “.pdf”, but only if there are no characters between the “http://” and the “.pdf”.

javascript get object from array where property equals

Javascript Examples

javascript get object from array where property equals

ByAnurag batra July 22, 2022June 30, 2022

var res = jsArray.find(obj => { return obj.b === 6 }) Here is what the above code is Doing: 1. We’re creating a JavaScript array with three objects. 2. We’re creating a variable called res and assigning it the result of calling the find method on the jsArray. 3. The find method takes a callback…

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javascript string unique characters

ByAnurag batra July 7, 2022June 30, 2022

const unique = (str) => { const cleanStr = str.replace(/ /gi, ”); const set = […new Set(cleanStr)]; return set; } console.log(unique(‘asdqwe asdqwet dfadqwre ‘)); Here is what the above code is Doing: 1. We’re removing all the spaces from the string. 2. We’re creating a set from the string. 3. We’re returning the set.

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javascript adding delay

ByAnurag batra July 5, 2022June 30, 2022

//You have to wait for TypeScript 2.0 with async/await for ES5 support as it now supported only for TS to ES6 compilation. //You would be able to create delay function with async: function delay(ms: number) { return new Promise( resolve => setTimeout(resolve, ms) ); } //And call it await delay(300); Here is what the above…

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npm express

ByAnurag batra July 17, 2022June 30, 2022

$ npm install express Here is what the above code is Doing: 1. We’re importing the express module. 2. We’re creating an instance of the express module. 3. We’re creating a route for the root URL. 4. We’re telling the app to listen on port 3000.

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moment format datetime postgresql

ByAnurag batra July 22, 2022June 30, 2022

moment().format(‘YYYY-MM-DD HH:mm:ss’) Here is what the above code is Doing: 1. We’re importing the datetime module. 2. We’re creating a variable called now and setting it equal to datetime.datetime.now(). 3. We’re creating a variable called current_time and setting it equal to now.strftime(“%H:%M:%S”). 4. We’re creating a variable called current_date and setting it equal to now.strftime(“%m/%d/%Y”)….

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function click anywhere javascript

ByAnurag batra July 19, 2022June 30, 2022

document.body.addEventListener(‘click’, fn, true); Here is what the above code is Doing: 1. We’re creating a function called fn. 2. We’re adding an event listener to the body of the page. 3. The event listener is listening for a click. 4. When the click happens, it will run the function fn. 5. The function fn will…

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