truncate text javascript code example

Example 1: How to make string shorter javascript

const string = "Name".slice(0, 250).concat('...');
const string2 = "Name".substring(0, 250).concat('...');

Example 2: javascript cut string if too long

if (string.length > 25) {
  string = string.substring(0, 24) + "...";
}

//or 

function truncate(str, n){
  return (str.length > n) ? str.substr(0, n-1) + '…' : str;
};

//or with CSS

p {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

//or with replace

short = long.replace(/(.{7})..+/, "$1…");

Example 3: javascript truncate string

var string = "ABCDEFG";
var truncString = string.substring(0, 3); //Only keep the first 3 characters
console.log(truncString); //output: "ABC"

Example 4: determine text truncate javascript

/**
 * Check if an element is truncated.
 */
function isTruncated(el) {
  return el.scrollWidth > el.clientWidth
}