JavaScript Template Literals
š Backtick Strings in JavaScript Should Have Been the Default
Think about it: multiline strings without \n; embedded variables without +; dynamic content without escaping hell.
Template literals do all of this. Yet people still instinctively go for single and double quotes when creating strings.
What if backticks had been the default from the start?
ā Template literal features ā Interpolation ā Multiline strings ā Expression evaluation ā Tagged templates ā String.raw
#javascript #templateliterals #interpolation #backticks #taggedtemplates #strings #es6 #rawstrings #multiline #webdev
Template literals are strings enclosed in backticks (``). It enables interpolation, multiline text, and tagged templates.
Interpolation
Embed variables and expressions inside ${}.
const name = "Alice";
const age = 30;
const message = `Hello, ${name}! You are ${age} years old.`;
// "Hello, Alice! You are 30 years old."Multiline strings
Backticks preserve line breaks.
const poem = `
Roses are red,
Violets are blue.
`;Expression evaluation
Any valid JavaScript expression can go inside ${}.
const a = 5;
const b = 10;
`The sum is ${a + b}`; // "The sum is 15"
`Today is ${new Date().toDateString()}`;Tagged templates
A tag function receives the string parts and interpolated values for custom processing.
function highlight(strings, ...values) {
return strings.reduce((result, str, i) => {
const value = values[i] ? `[${values[i]}]` : "";
return result + str + value;
}, "");
}
const name = "Alice";
highlight`Hello ${name}`; // "Hello [Alice]"String.raw
String.raw returns the raw string without processing escape sequences.
const raw = String.raw`line1\nline2`;
// "line1\\nline2"Full-Stack AI Developer Roadmap
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