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- Tags: JS RegExp Modifier, RegExp
- Categories: JavaScript Reference, JavaScript RegExp, Reference
Last Updated on December 21, 2022
Quick Reference
In JavaScript RegExp, the “i” modifier specifies a case-insensitive match.
<!-- html element to place output -->
<p id="my_output"></p>
// variables
let text = 'Hello World and hello universe';
let pattern = /hello/i;
let result = text.match(pattern);
// output to the HTML element
document.getElementById('my_output').innerHTML = result;
Output
Hello
Syntax
/regexp/i
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JAVASCRIPT NOTES:
- When using JavaScript, single or double quotation marks are acceptable and work identically to one another; choose whichever you prefer, and stay consistent
- JavaScript is a case-sensitive language; firstName is NOT the same as firstname
- Arrays count starting from zero NOT one; so item 1 is position [0], item 2 is position [1], and item 3 is position [2] … and so on
- JavaScript variables must begin with a letter, $, or _
- JavaScript variables are case sensitive (x is not the same as X)
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