JavaScript String Format Techniques
February 18, 2024
JavaScript offers various methods to format strings. This guide covers the most common JavaScript techniques to format a string: template literals, concatenation, and the Intl
object for locale-specific formatting.
How to use template literals in JavaScript?
Template literals, introduced in ES6, provide an easy way to create formatted JavaScript strings. They allow for embedded expressions, which are enclosed by the dollar sign and curly braces (${expression}
), and are enclosed by backticks (`).
const name = "Jane"; const greeting = `Hello, ${name}!`; console.log(greeting); // Output: Hello, Jane!
How to concatenate strings in JS?
Before template literals, string concatenation with the +
operator was commonly used. This method is still viable, especially for simple concatenations.
const firstName = "John"; const lastName = "Doe"; const fullName = firstName + " " + lastName; console.log(fullName); // Output: John Doe
You could ship faster.
Imagine the time you'd save if you never had to build another internal tool, write a SQL report, or manage another admin panel again. Basedash is built by internal tool builders, for internal tool builders. Our mission is to change the way developers work, so you can focus on building your product.
How to format numbers in JS?
For formatting numbers, the Intl.NumberFormat
object provides locale-sensitive number formatting.
const number = 123456.789; // German uses comma as decimal separator and period for thousands const formattedNumber = new Intl.NumberFormat('de-DE').format(number); console.log(formattedNumber); // Output: 123.456,789
How to format dates in JS?
Similarly, the Intl.DateTimeFormat
object allows for the formatting of dates in a locale-sensitive manner.
const date = new Date(); // British English uses day-month-year format const formattedDate = new Intl.DateTimeFormat('en-GB').format(date); console.log(formattedDate); // Output: 20/04/2023
Custom formatting functions
For more complex or specific formatting needs, creating custom functions is a practical solution.
function formatCurrency(value, locale = 'en-US', currency = 'USD') { return new Intl.NumberFormat(locale, { style: 'currency', currency: currency }).format(value); } const price = 999.99; console.log(formatCurrency(price)); // Output: $999.99
TOC
February 18, 2024
JavaScript offers various methods to format strings. This guide covers the most common JavaScript techniques to format a string: template literals, concatenation, and the Intl
object for locale-specific formatting.
How to use template literals in JavaScript?
Template literals, introduced in ES6, provide an easy way to create formatted JavaScript strings. They allow for embedded expressions, which are enclosed by the dollar sign and curly braces (${expression}
), and are enclosed by backticks (`).
const name = "Jane"; const greeting = `Hello, ${name}!`; console.log(greeting); // Output: Hello, Jane!
How to concatenate strings in JS?
Before template literals, string concatenation with the +
operator was commonly used. This method is still viable, especially for simple concatenations.
const firstName = "John"; const lastName = "Doe"; const fullName = firstName + " " + lastName; console.log(fullName); // Output: John Doe
You could ship faster.
Imagine the time you'd save if you never had to build another internal tool, write a SQL report, or manage another admin panel again. Basedash is built by internal tool builders, for internal tool builders. Our mission is to change the way developers work, so you can focus on building your product.
How to format numbers in JS?
For formatting numbers, the Intl.NumberFormat
object provides locale-sensitive number formatting.
const number = 123456.789; // German uses comma as decimal separator and period for thousands const formattedNumber = new Intl.NumberFormat('de-DE').format(number); console.log(formattedNumber); // Output: 123.456,789
How to format dates in JS?
Similarly, the Intl.DateTimeFormat
object allows for the formatting of dates in a locale-sensitive manner.
const date = new Date(); // British English uses day-month-year format const formattedDate = new Intl.DateTimeFormat('en-GB').format(date); console.log(formattedDate); // Output: 20/04/2023
Custom formatting functions
For more complex or specific formatting needs, creating custom functions is a practical solution.
function formatCurrency(value, locale = 'en-US', currency = 'USD') { return new Intl.NumberFormat(locale, { style: 'currency', currency: currency }).format(value); } const price = 999.99; console.log(formatCurrency(price)); // Output: $999.99
February 18, 2024
JavaScript offers various methods to format strings. This guide covers the most common JavaScript techniques to format a string: template literals, concatenation, and the Intl
object for locale-specific formatting.
How to use template literals in JavaScript?
Template literals, introduced in ES6, provide an easy way to create formatted JavaScript strings. They allow for embedded expressions, which are enclosed by the dollar sign and curly braces (${expression}
), and are enclosed by backticks (`).
const name = "Jane"; const greeting = `Hello, ${name}!`; console.log(greeting); // Output: Hello, Jane!
How to concatenate strings in JS?
Before template literals, string concatenation with the +
operator was commonly used. This method is still viable, especially for simple concatenations.
const firstName = "John"; const lastName = "Doe"; const fullName = firstName + " " + lastName; console.log(fullName); // Output: John Doe
You could ship faster.
Imagine the time you'd save if you never had to build another internal tool, write a SQL report, or manage another admin panel again. Basedash is built by internal tool builders, for internal tool builders. Our mission is to change the way developers work, so you can focus on building your product.
How to format numbers in JS?
For formatting numbers, the Intl.NumberFormat
object provides locale-sensitive number formatting.
const number = 123456.789; // German uses comma as decimal separator and period for thousands const formattedNumber = new Intl.NumberFormat('de-DE').format(number); console.log(formattedNumber); // Output: 123.456,789
How to format dates in JS?
Similarly, the Intl.DateTimeFormat
object allows for the formatting of dates in a locale-sensitive manner.
const date = new Date(); // British English uses day-month-year format const formattedDate = new Intl.DateTimeFormat('en-GB').format(date); console.log(formattedDate); // Output: 20/04/2023
Custom formatting functions
For more complex or specific formatting needs, creating custom functions is a practical solution.
function formatCurrency(value, locale = 'en-US', currency = 'USD') { return new Intl.NumberFormat(locale, { style: 'currency', currency: currency }).format(value); } const price = 999.99; console.log(formatCurrency(price)); // Output: $999.99
What is Basedash?
What is Basedash?
What is Basedash?
Ship faster, worry less with Basedash
Ship faster, worry less with Basedash
Ship faster, worry less with Basedash
You're busy enough with product work to be weighed down building, maintaining, scoping and developing internal apps and admin panels. Forget all of that, and give your team the admin panel that you don't have to build. Launch in less time than it takes to run a standup.
You're busy enough with product work to be weighed down building, maintaining, scoping and developing internal apps and admin panels. Forget all of that, and give your team the admin panel that you don't have to build. Launch in less time than it takes to run a standup.
You're busy enough with product work to be weighed down building, maintaining, scoping and developing internal apps and admin panels. Forget all of that, and give your team the admin panel that you don't have to build. Launch in less time than it takes to run a standup.
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