javascript truncate string
var string = "ABCDEFG";
var truncString = string.substring(0, 3); //Only keep the first 3 characters
console.log(truncString); //output: "ABC"javascript truncate string
var string = "ABCDEFG";
var truncString = string.substring(0, 3); //Only keep the first 3 characters
console.log(truncString); //output: "ABC"Truncate a String
const truncateString = (str, num) => {
/******* Method One(1) *******/
// Return the actual string if num is equal or greater than str,
// else return the slice/copy the str from index 0 to index n(num), then truncate.
return num >= str.length ? str : str.slice(0, num)+'...'
/******* Method Two(2) *******/
let newString = ''
// Return same string if number length is greater or equal
if(num >= str.length) newString += str;
// Split each string, set new string to the spliced arr, join the new string and truncate
else newString += str.split('').splice(0, num).join('')+'...'
return newString
/******* Method Three(3) *******/
let truncateString = ''
// Optimize, to aviod looping through str when it is greater than the num
if(num >= str.length) {
truncateString = str
return truncateString
}
else for(let i = 0; i < num; i++) truncateString += str[i]
return truncateString+'...'
// OR
let truncateString = ''
for(let i = 0; i < num; i++) truncateString += str[i]
// Conditionally search to avoid result returning undefined for num greater than str length
return num >= str.length ? str : truncateString+'...'
}
truncateString("Peter Piper picked a peck of pickled peppers", 11);Truncate a string
function truncateString(str, num) {
// Clear out that junk in your trunk
if (str.length > num) {
return str.slice(0, num) + "...";
} else {
return str;
}
}string truncate
text_truncate = function(str, length, ending) {
if (length == null) {
length = 100;
}
if (ending == null) {
ending = '...';
}
if (str.length > length) {
return str.substring(0, length - ending.length) + ending;
} else {
return str;
}
};
console.log(text_truncate('We are doing JS string exercises.'))
console.log(text_truncate('We are doing JS string exercises.',19))
console.log(text_truncate('We are doing JS string exercises.',15,'!!'))Truncate a string
function truncateString(str, num) {
if (str.length > num) {
return str.slice(0, num) + "...";
} else {
return str;
}
}
truncateString("Lorem Ipsum placeholder text in any number of characters, words sentences or paragraphs", 9) // returns Lorem Ips...Copyright © 2021 Codeinu
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