Search Results for: python string

This article will explain equality and inequality in the JavaScript Programming language, and provide code examples showing how to check if values are equal in value and type. Checking whether two values are equal can get a bit confusing in JavaScript – there is loose equality and strict equality involving types to consider. Read on to find out how testing for equality and inequality works in JavaScript. What are equality and inequality? In programming, equality is the process of checking whether two values are equal … Read more

The for…in loop in JavaScript loops over all of the properties in an object. This article will explain why and how to use it. JavaScript Objects JavaScript objects are a kind of variable which store the properties for an item you are representing in your code. For example, you may have a car object, which of which the make, year, model, and colour of a car are it’s properties. Each car object would have it’s own separate list of properties which define that car. JavaScript objects can also be used as hash tables – providing … Read more

This tutorial will demonstrate how to create a countdown timer in JavaScript, including a function you can copy and paste into your own code. The below code will break down creating a function which calculates the time until a certain future time, and how to run it repeatedly to affect a count down timer. Getting the time remaining until a certain date/time The below function will calculate the days, hours, minutes, and seconds to a target date: function timeToTarget(countdownString){ // Convert the string which specifies … Read more

This quick tutorial will show you how to find and replace text in JavaScript, with code examples. Replacing text in strings is something you will probably need to do quite often. JavaScript comes with the replace() method as part of it’s String objects to handle this functionality. JavaScript Strings JavaScript Strings are a type of variable used to store and manipulate a sequence of characters. There are also string primitives which represent only the characters and do not contain methods for manipulation, but JavaScript will implicitly convert between the two when required. The … Read more

This tutorial will show you how to format numbers to a fixed number of decimal places in the JavaScript programming language. JavaScript Number Variables JavaScript variables have different types. The type of a variable defines what kinds of values it can hold, and what can be done with that value. Number typed variables hold numeric values and include a number of methods (built in functions) for performing numeric operations. Number variables are declared by simply assigning a numeric value to a variable, or using the Number … Read more