Using String Replace Function:
The String.replace() function allows you to substitute strings utilizing String & Regex. The replaceAll() method returns a new string with all matches of a pattern substituted by a replacement. It is also possible to explore other string methods. In short, this function helps to replace the string at its first occurrence.
Breakpoints & Debugging Points
Convert To Floating Number Without Compromising Performance
math.floor, math.ceil & math.round are often utilized to eliminate decimals. A better option is to use “~~” to phase out decimals for a value. This is basically a handy shorthand to save time to achieve functionalities such as Date(). It also helps to enhance the performance of micro-optimizations in a code.
Using Length To Empty An Array
To delete n elements in an array, start utilizing array.length. This technique helps in emptying & resizing an array.
Merging Arrays Without Server Load
If you want to merge two arrays, utilize Array.concat() function for small arrays and Array.push.apply() function for large arrays. Array.concat() function consumes a lot of memory during the creation of a new array if the arrays are large. Array.push.apply(arr1, arr2) will simply merge the second array to the first one and thus reduces memory usage.
Splice To Delete Array Elements
Using Splice optimizes the speed of the JS code and is always a better option than delete as it saves some “undefined/null” space in the code. The drawback of using delete is that it deletes the object property without updating the length of the array or reindexing it. This leaves behind undefined values.
Utilize Switch Case
Switch cases can perform the same task as if/else statements. The advantage is that the switch case statements are evaluated only once in comparison to the if/else statements where an evaluation is necessary for each if that is present.
Use || operator For Default Values
r a = a || ‘hello’
You should check if there are conflicting values that can be passed to the function to dodge bugs.
You can use jsbeautifier to beautify the code. It reformats a clumsy-looking code and presents it in a structured way.
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