But there are disadvantages, such as requiring the input to be properly formatted JSON.īy using string.replace similar to how I used string.split above, you can fix the input. The join () method does not change the original array. It has some other advantages such as support for nested lists. Description The join () method returns an array as a string. It may feel like a bit of a hack, but it's simple and highly optimized by most Javascript engines. Method 1: Convert Array to String Without Commas in JavaScript Using join() Method With Blank Value or Blank Space. ) // numbers, empty values default to zeroĬonsole.log( num.split(/+/).map(Number) ) // spaces trimmed, empty values NOT skipped ) // spaces trimmed, empty values skipped Tip: If an empty string ('') is used as the separator, the string is split between each character. The toString method of arrays calls join() internally, which joins the array and returns one string containing each array element separated by commas. ) // spaces NOT trimmed, empty values included Definition and Usage The split() method is used to split a string into an array of substrings, and returns the new array. Here are some of the most common methods: Using the join() method: This method joins all elements of an array into a string, separated by a specified separator. And if you want to convert an array of objects into a string, then use the JSON.stringify method: arr.join () You can specify an empty string as an argument to join, if no argument is specified a comma is used. I quickly fiddled this together: (function($) ', restString) īlock = $.trim(block) + getBlock(']', restString) There are several ways to convert an array to a string with comma separation in Javascript. by Rohit FebruUse the join () method or toString () method to convert an array to a string with commas in JavaScript. If the join method is unavailable or is not a function, is used instead, returning object Array. The toString method of arrays calls join () internally, which joins the array and returns one string containing each array element separated by commas. So how would you interpret that? And what do you want the result to be? An array with: orĮven if you escape the comma, you'd have a problem. The Array object overrides the toString method of Object. Observe the following: var myArr = "a,b,c,d,e,f,g,','" Hmm, split is dangerous IMHO as a string can always contain a comma.
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