Here you only want the first caract so : start = 0 and length = 1 var str = "Stack overflow"; console.log (str.substring (0,1)); Alternative : string [index] A string is an array of caract. So you can get the first caract like the first cell of an array. Return the caract at the index index of the string
Full Answer
What are strings in Salesforce?
Apex identifies many field types as Strings in Salesforce, including but not limited to: texts, text areas, long and rich text areas, picklists, and email fields. Since they store text values, the names of records on Salesforce are considered Strings according to Apex.
How to get the first caract of a string?
A string is an array of caract. So you can get the first caract like the first cell of an array. Return the caract at the index index of the string. var str = "Stack overflow"; console.time("array"); console.log(str[0]); console.timeEnd("array");
How to get the first character of a string in Java?
A string is an array of caract. So you can get the first caract like the first cell of an array. Show activity on this post. The charAt () method allows you to specify the position of the character you want.
What happens when we extract the first character from a string?
As we are extracting the first character, if the value being passed is null, it will return that error. Hope this Helps! If this reply has answered your question or solved your issue, please mark this question as answered. Answered questions helps users in the future who may have the same issue or question quickly find a resolution via search.
How do I get the first two characters of a String in Salesforce?
you can use, String concat = FirstName. substring(0,2) + LastName. substring(0,2);
How do I slice strings in Apex?
Use String.split(regExp, limit) method: Returns a list that contains each substring of the String that is terminated by either the regular expression regExp or the end of the String.
What is substring in Salesforce?
Returns characters from the string, starting at the specified position and of the specified length.
What is String valueOf in Salesforce?
valueOf(datetimeToConvert) Returns a String that represents the specified Datetime in the standard “yyyy-MM-dd HH:mm:ss” format for the local time zone.
How do I find a character in a String in Apex?
Apex String Methods to Determine Character TypesisAlpha() : This string method will return true, if the string contain only characters.isAlphaSpace() : This string method will return true, if the string contain alphabet and white spaces.More items...•
How do I trim a String in Salesforce?
You can use the instance method "trim" on the String class. According to the docs: "Returns a copy of the string that no longer contains any leading or trailing white space characters. Leading and trailing ASCII control characters such as tabs and newline characters are also removed.
How do I remove the first and last character from a String in Apex?
Using deleteCharAt() to delete first or last character So, if you are deleting characters from String, the best way is to first convert String to StringBuilder and then use either delete() or deleteCharAt(int index) method to remove characters.
How do you get the last character of a String in Apex?
right() is used to get last n digits from a String using Apex.
How do I check if a String has a substring in Apex?
Apex - Stringscontains. This method will return true if the given string contains the substring mentioned. ... equals. This method will return true if the given string and the string passed in the method have the same binary sequence of characters and they are not null. ... remove. ... removeEndIgnoreCase. ... startsWith.
How do you find the length of a String in Salesforce?
length() method can be used to find the length of the String using Apex in Salesforce.
How do I convert a String to an integer in Salesforce?
Integer Methodsformat() Returns the integer as a string using the locale of the context user.valueOf(stringToInteger) Returns an Integer that contains the value of the specified String. ... valueOf(fieldValue) Converts the specified object to an Integer.
How do I check if a String is empty in Salesforce?
isBlank(inputString) : Returns true if the specified String is white space, empty (''), or null; otherwise, returns false. isEmpty(inputString) : Returns true if the specified String is empty ('') or null; otherwise, returns false. So the isEmpty() function is a subset of isBlank() function.