Introduced in ES6 as "template strings"
MDN docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
const name = "Nick"
const greeting = `Hello ${name}` // "Hello Nick"
MDN Web Docs
developer.mozilla.org › en-US › docs › Learn_web_development › Core › Scripting › Strings
Handling text — strings in JavaScript - Learn web development | MDN
Template literals mostly behave the same as normal strings, but they have some special properties: You can embed JavaScript in them. You can declare template literals over multiple lines. Inside a template literal, you can wrap JavaScript variables or expressions inside ${ }, and the result will be included in the string:
W3Schools
w3schools.com › js › js_variables.asp
JavaScript Variables
If you put a number in quotes, it will be treated as a text string. const pi = 3.14; let person = "John Doe"; let answer = 'Yes I am!'; Try it Yourself » · You can declare many variables in one statement. Start the statement with let or constand separate the variables by comma: let person = "John Doe", carName = "Volvo", price = 200; Try it Yourself » ... In JavaScript, the equal sign (=) is an assignment operator, not an equal to operator.
Videos
02:05
How to Use Variables in Strings in Javascript - YouTube
06:56
JavaScript for Beginners - Creating String Variables / Working ...
18:20
JavaScript String Methods & Variables Explained Simply 💡 - YouTube
06:48
Variable Strings JavaScript - YouTube
04:01
#8- Mixing Strings With Variables (Modern JavaScript For Beginners) ...
SheCodes
shecodes.io › athena › 8931-creating-a-string-with-variables-in-javascript
[JavaScript] - Creating a String With Variables in | SheCodes
Learn how to add a variable to a string using either string concatenation or string interpolation with template literals for a more modern approach.
Top answer 1 of 4
66
Introduced in ES6 as "template strings"
MDN docs: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Template_literals
const name = "Nick"
const greeting = `Hello ${name}` // "Hello Nick"
2 of 4
4
https://www.npmjs.com/package/stringinject
https://github.com/tjcafferkey/stringinject
I created this function to do exactly this, it will allow you to pass in a string, and an object with keys that will replace placeholder values in the string with their values like below:
var str = stringInject("My username is {username} on {platform}", { username: "tjcafferkey", platform: "GitHub" });
// My username is tjcafferkey on Github
Top answer 1 of 16
1288
You can take advantage of Template Literals and use this syntax:
`String text ${expression}`
Template literals are enclosed by the back-tick (` `) (grave accent) instead of double or single quotes.
This feature has been introduced in ES2015 (ES6).
Example
var a = 5;
var b = 10;
console.log(`Fifteen is ${a + b}.`);
// "Fifteen is 15.
How neat is that?
Bonus:
It also allows for multi-line strings in javascript without escaping, which is great for templates:
return `
<div class="${foo}">
...
</div>
`;
Browser support:
As this syntax is not supported by older browsers (mostly Internet Explorer), you may want to use Babel/Webpack to transpile your code into ES5 to ensure it will run everywhere.
Side note:
Starting from IE8+ you can use basic string formatting inside console.log:
console.log('%s is %d.', 'Fifteen', 15);
// Fifteen is 15.
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177
Prior to Firefox 34 / Chrome 41 / Safari 9 / Microsoft Edge, nope, that was not possible in javascript. You would have to resort to:
var hello = "foo";
var my_string = "I pity the " + hello;
Jquery
forum.jquery.com › portal › en › community › topic › how-can-you-insert-a-variable-into-a-string
How can you insert a variable into a string?
We cannot provide a description for this page right now
GeeksforGeeks
geeksforgeeks.org › javascript › how-to-create-a-string-with-variables-in-javascript
How to Create a String with Variables in JavaScript? - GeeksforGeeks
November 12, 2024 - To create a string with variables in JavaScript, you can use several methods, including string concatenation, template literals, and the String methods.
Sentry
sentry.io › sentry answers › javascript › check if a variable is a string in javascript
Check if a variable is a string in JavaScript | Sentry
We can do this using JavaScript’s typeof operator along with its strict equality operator. We can test this with the following code: ... // Function to test if variable is a string function isString(variable) { return typeof variable === "string"; } // Variables of different types let myBool = false; let myNum = 12; let myArray = [1, 2, 3] let myObject = { a: 1, b: 2, c: 3} let myString = "Hello world!"
freeCodeCamp
freecodecamp.org › news › what-is-a-string-in-javascript
What is a String in JS? The JavaScript String Variable Explained
November 7, 2024 - In JavaScript, a string is a data type representing a sequence of characters that may consist of letters, numbers, symbols, words, or sentences. We use strings to represent text-based data and we define them using either single quotes ('), double quotes ("), or backticks (``): let name1 = 'John Doe'; let name2 = "John Doe"; let name3 = `John Doe`; In the above example, you have three strings assigned to different variables.
freeCodeCamp
forum.freecodecamp.org › javascript
Basic JavaScript - Declare String Variables - JavaScript - The freeCodeCamp Forum
September 11, 2023 - Tell us what’s happening: Describe your issue in detail here. I don’t understand what I am doing wrong here with stringing “myName” with a variable ex. Darko. Please advise. Your code so far var darko = myFirstName ; var rudnik = myLastName ; Your browser information: User Agent is: ...
KIRUPA
kirupa.com › javascript › combining_strings_variables.htm
Combining Strings and Variables
Learn how to combine strings made up of static text and variable values using both the concatenation and template literal approaches.
MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Global_Objects › String
String - JavaScript | MDN
String literals can be specified using single or double quotes, which are treated identically, or using the backtick character `. This last form specifies a template literal: with this form you can interpolate expressions.
TutorialsPoint
tutorialspoint.com › How-to-declare-String-Variables-in-JavaScript
How to declare String Variables in JavaScript?
So to print these types of statements we have to use the quotes with backslash(\) like shown below ? var sentence = "In elementary school we learn "basic skills" like reading and writing"; ... <html> <head> <title>JavaScript Strings</title> </head> <body> <script> var str1 = 'It is 5 o'clock in the morning.'; var str2 = "In elementary school, we learn "basic skills" like reading and writing"; document.write(str1 + "</br>" ); document.write(str2 + "</br>"); </script> </body> </html>
Reddit
reddit.com › r/learnjavascript › beginner question, referencing string variable (van.js)
r/learnjavascript on Reddit: Beginner question, referencing string variable (van.js)
May 25, 2024 -
I've been experimenting with van.js examples, and overall I really like what I am seeing. Most of my experience in the past has been with modifying simple DOM objects directly, so this framework is promising to me.
The following snippet of code is from the Van UI "Tabs" example, and creates a tab for each entry, revealing the associated text when selected. This is all working fine:
const tab1 = "Test"
console.log(tab1)
{
tab1: p(
"Welcome to ", b("VanJS"), " - the smallest reactive UI framework in the world.",
),
"Getting Started": [
p("To install the ", b("VanJS"), " NPM package, run the line below:"),
pre(code("npm install vanjs-core")),
],
About: p(
"The author of ", b("VanJS"), " is ",
a({href: "https://github.com/Tao-VanJS"}, " Tao Xin"), "."
),
},My goal is to use that variable, so that the first tab would display with the name "Test". I have tried many combinations of `{tab1}`, `${tab1}`, etc...but nothing does the trick.
I'm not sure if this is just basic js syntax that I am missing on how to insert the value, or something framework specific. Essentially I have arrays of data that I want to be able to reference in various HTML output.
Ultimately my goal with this example is to get to the point where I can define the title and the contents in an object, and write something that iterates a new tab for each value pair.
Top answer 1 of 2
3
[tab1]: Normally JS syntax. Declaring object properties from variables needs square brackets.
2 of 2
1
Like those other tabs, put it in quotes within the object declaration. Or if it’s allowed as an identifier, you can use text without quotes for it. You are declaring an object with particular properties of About, etc. You cannot reference a variable when declaring a property of an object. Unquoted text for a proper name just says “make a property called this.” It doesn’t reference variables or anything. If you really wanted to reference a string variable for this, you’d need to declare the object and sue it in some variable. Then you can set properties on it as you would normally: obj.Test = … or obj[“Test”] = … You can use an expression, including variable references inside the square brackets if you want to: obj[test1] = … And then you’d send the obj to whatever that function was, so it will set up the tabs based on it.
Codecademy
codecademy.com › forum_questions › 516db5a1ac9fa9882c001583
An efficient way to add a variable $var into a string | Codecademy
The syntax “StringStuff {$var} MoreStringStuff” is an efficient way to add a variable $var into a string.
DEV Community
dev.to › sprite421 › adding-variables-into-strings-using-javascript-s-template-literals-16m2
Adding Variables into Strings using JavaScript's Template Literals - DEV Community
December 20, 2020 - Those methods of logging our variables are valid, but there is another syntax that you might find useful. It's called a template literal. One of its features allows us to include the values of variables in a string.
Quora
quora.com › How-do-I-use-string-content-as-variable-name-in-JS
How to use string content as variable name in JS - Quora
Answer (1 of 9): Why would you want to do that?? You can sort of do a similar thing with object keys: [code]const myVar = "hello"; const obj = { [myVar]: "some content" // {hello: "some content"} } [/code]This actually can be useful - your keys can be ids or names of other “things” and you c...
DigitalOcean
digitalocean.com › community › tutorials › how-to-work-with-strings-in-javascript
How To Work with Strings in JavaScript | DigitalOcean
August 24, 2021 - In this article, we went over the basics of working with strings in JavaScript, from creating and displaying string literals using single and double quotes, creating template literals, concatenation, escaping, and assigning string values to variables.
WebPlatform
webplatform.github.io › docs › concepts › programming › variables_in_javascript
Variables in JavaScript · WebPlatform Docs
"1.1" + "1.1" = "1.11.1" (+"1.1") + (+"1.1") = 2.2 // Note: the parentheses are added for clarity, not required. You use variables as symbolic names for values in your application. The names of variables, called identifiers, conform to certain rules. A JavaScript identifier must start with ...
GeeksforGeeks
geeksforgeeks.org › javascript › how-to-convert-string-to-variable-name-in-javascript
How to Convert String to Variable Name in JavaScript? - GeeksforGeeks
August 5, 2025 - ... The eval() function allows you to execute JavaScript code that is expressed as a string although this method can be used to convert strings to variable names by dynamically creating and executing code however it is not strongly recommended, ...