Truncate a string
截斷字符串
(用瑞茲來截斷對面的退路)
如果字符串的長度比指定的參數num
長,則把多余的部分用...
來表示。
切記,插入到字符串尾部的三個點號也會計入字符串的長度。
但是,如果指定的參數num
小於或等於3,則添加的三個點號不會計入字符串的長度。
當你完成不了挑戰的時候,記得開大招‘Read-Search-Ask‘。
這是一些對你有幫助的資源:
- String.slice()
function truncate(str, num) { // 請把你的代碼寫在這裏 if(num>=str.length){ return str; }else if(num<=3){return str.slice(0,num)+"..."; }else{ return str.slice(0,num-3)+‘...‘; } } truncate("A-tisket a-tasket A green and yellow basket", 11);
Truncate a string
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