Search results for "javascript"


Answer for replaceAll is not a function JavaScript Error

on November 10, 2021 🔥 0 views

You can not update value again in const.

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How to parse cookies in javascript?

on September 6, 2021 🔥 11073 views

In the browser cookies is store in string format containing key-value pairs. So, how to parse a browser Cookie string and return an object of all cookie name-value pairs? separate each key-value pair using String.prototype.split(‘;’) Use Array.prototype.map() and String.prototype.split(‘=’) to separate keys from values in each pair. Use Array.prototype.reduce() and decodeURIComponent() to create an object […]

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How to use for loops to break out early in javascript?

on September 3, 2021 🔥 559 views

for loop in modern JavaScript is rarely talked about although it’s only useful in asynchronous operation scenarios. But what breaking out early consider the following example: Matching two array const smallArray = [0, 2]; const largeArray = Array.from({ length: 1000 }, (_, i) => i); const areEqual = (a, b) => { let result = […]

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How to create a cookie using JavaScript?

on September 3, 2021 🔥 852 views

The simplest way to create a cookie is to assign a string value to the document.cookie object, for example- document.cookie = “key1 = value1; key2 = value2; expires = date”; // Example var now = new Date(); now.setTime(now.getTime() + 1 * 3600 * 1000); //set cookies to expire in 1 hour document.cookie = `${key} = […]

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How to write a callback function in javascript?

on September 2, 2021 🔥 467 views

A callback function is a function that is passed to another function as an argument and is executed after some operation has been completed. for example of a simple callback function that logs to the console after some operations have been completed. function extendArray(arr, callback) { arr.push(100); // then execute the callback function that was […]

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Answer for replaceAll is not a function JavaScript Error

on May 20, 2021 🔥 0 views

You can do it via regular expression: use the /g (“match globally”) modifier with a regular expression argument to replace if you are assigning a RegExp directly let a = “[email protected]”; a = a.replace(/xxxx-/g, “”); if you want to pass RegExp with some variable let a = “[email protected]”; const code = ‘xxxx’; const key = […]

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replaceAll is not a function JavaScript Error

on May 20, 2021 🔥 0 views

I need an alternative of replaceAll method, as it was added in ES2021/ES12. let a = “[email protected]”; a = a.replace(“xxxx-“, “”); console.log(a); output // Actual [email protected] // Required [email protected]

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What Is A Currying Function In Javascript?

on October 18, 2020 🔥 152941 views

In this tutorial, we will see What Is A Currying Function In Javascript. Currying is an alteration of functions that turns a function from callable as f(a, b, c) into callable as f(a)(b)(c). Currying Function In Javascript A currying function is a function that takes multiple arguments and turns it into a sequence of functions […]

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Answer for Ineffective mark-compacts near heap limit Allocation failed – JavaScript heap out of memory

on October 15, 2020 🔥 0 views

You can run the following command in terminal to increase the heap memory. export NODE_OPTIONS=”–max-old-space-size=8192″

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Ineffective mark-compacts near heap limit Allocation failed – JavaScript heap out of memory

on October 14, 2020 🔥 0 views

Ineffective mark-compacts near heap limit Allocation failed – JavaScript heap out of memory I am getting this below error although I have a total of 4000 Unit Test Cases (test suits) and my test command is ng test –codeCoverage=true –progress=true –source-map=true   ERROR <— Last few GCs —> [17161:0x3436ed0] 77543 ms: Mark-sweep 1339.8 (1441.9) -> […]

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