I'm working with a JavaScript array that looks like this:
["X1", " X2", " X3", " X4", " X5", " X6", " X YZ1", " X YZ2", " X7", " X8", " X9"]
I need to remove the empty spaces before any letter starts, except for cases like X YZ1 where there is space between characters.
Can anyone help me with this issue?
Thanks in advance!
Best regards.
Regular expression to replace leading spaces:
for (let index = 0; index < array.length; index++)
array[index] = array[index].replace(/^\s+/, "");
One possible solution is to utilize the replace() method.
textArray[0].replace(/\s/g, "") ;
Iterating through the elements in an array and removing any whitespace characters from each element before moving on to the next one.
Behold, behold! A magnificent solution has been born, introducing a new method to the Array object.
Witness the magic here: http://jsfiddle.net/xyzabc123/
b = ["Alpha", " Beta", " Gamma", " Delta", " Epsilon"];
Array.prototype.stripSpaces = function() {
for (var i = 0; i < this.length; i++) {
this[i] = this[i].replace(/^\s+/, "");
}
return this;
}
console.log(b.stripSpaces());
Every modern browser comes with built-in support for the .trim() method. For more information, please refer to: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/Trim
arr[i] = arr[i].trim();
This function does not remove spaces within the string as mentioned in your query.
Alternatively, if you aim to eliminate all spaces including leading, trailing, and embedded spaces, you can utilize regex:
arr[i] = arr[i].replace(/\s/g, "");
Example using .trim() (Leading and Trailing Spaces):
var arr = ["X1", " X2", " X3", " X4", " X5", " X6", " X YZ1", " X YZ2", " X7", " X8", " X9"];
for (var i = 0; i < arr.length; i++) { arr[i] = arr[i].trim(); }
document.getElementById("result").innerText = arr.join(",");
<p id="result"></p>Example using regex (Removing All Spaces):
var arr = ["X1", " X2", " X3", " X4", " X5", " X6", " X YZ1", " X YZ2", " X7", " X8", " X9"];
for (var i = 0; i < arr.length; i++) { arr[i] = arr[i].replace(/\s/g, ""); }
document.getElementById("result").innerText = arr.join(",");
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