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The replace()
method returns a modified string where the pattern is replaced.
Here's two examples of using replace()
: one simple method and one a little more advanced
using a regex
pattern.
// example 1
let demo1 = document.getElementById("demo1");
let message = "Hello WoRld";
message = message.replace("WoRld", "World");
demo1.innerHTML = message;
// example 2
let demo2 = document.getElementById("demo2");
let expression = /world/i;
message = message.replace(expression, "Everybody!")
demo2.innerHTML = message;
Regular Expression Modifiers
Modifiers can be used to perform case-insensitive searches.
i
- Perform case-insensitive matchingg
- Perform a global match (find all matches rather than stopping after the first match)m
- Perform multiline matching