Shell script function parameter with double quote that ECHO command's SIGN - shell

Question

I'm developing some shell script. please help me
I want to highlight specific strings with FUNCTION like this.
#!/bin/bash
function echoWithColor(){
local InputString=${1}
tput bold;tput setaf 2 # make words color to bright green
echo ${InputString}
tput sgr0 # make words color to default
}
echoWithColor "Hello everyone!"
this works, but I want to add some blank (space text) at end of line like
echo -n "Input your age : "; read AGE
[root#mycomputer scripts]# ./script.sh
Input your age : 9999
but
#!/bin/bash
function echoWithColor(){
local InputString=${1}
tput bold;tput setaf 2 # make words color to bright green
echo ${InputString}
tput sgr0 # make words color to default
}
echoWithColor "-n Input your age : "; read AGE
[root#mycomputer scripts]# ./script.sh
Input your age :9999
Nope
.
#!/bin/bash
function echoWithColor(){
local InputString=${1}
tput bold;tput setaf 2 # make words color to bright green
echo ${InputString}
tput sgr0 # make words color to default
}
echoWithColor "-n \"Input your age : \""; read AGE
[root#mycomputer scripts]# ./script.sh
"Input your age :"9999
Escaping? Nope.
How can I add blank text at end of line?

Answer 1

This happens because you don't quote your variables:
var=" my value "
echo $var without quotes # writes: my value without quotes
echo "$var with quotes" # writes: my value with quotes
Since you want to pass pass multiple strings to echo (both -n and Input your age), you should rewrite the function to take multiple arguments ("$#") instead of just one ($1), and then make sure to quote when using them:
#!/bin/bash
echoWithColor(){
local InputStrings=( "$#" )
tput bold;tput setaf 2 # make words color to bright green
echo "${InputStrings[#]}"
tput sgr0 # make words color to default
}
echoWithColor -n "Input your age: "
Now echoWithColor works exactly like echo, and preserves all spaces you pass to it.

Answer 2

Just add space ' ' in echo ${InputString} command in function just like below
#!/bin/bash
function echoWithColor(){
local InputString=${1}
tput bold;tput setaf 2 # make words color to bright green
echo ${InputString}' '
tput sgr0 # make words color to default
}
echoWithColor "-n Input your age : "; read AGE