how to ask if a variable contains a char in javascript code example
Example 1: javascript check if character exists in string
"FooBar".includes("oo");
"FooBar".includes("foo");
"FooBar".includes("oo", 2);
~"FooBar".indexOf("oo");
~"FooBar".indexOf("foo");
~"FooBar".indexOf("oo", 2);
!!~"FooBar".indexOf("oo");
!!~"FooBar".indexOf("foo");
!!~"FooBar".indexOf("oo", 2);
Example 2: js check if string contains character
if (your_string.indexOf('hello') > -1)
{
alert("hello found inside your_string");
}