How to replace a string with given pattern?

ruby-talk
1

I want to replace a string with the new value on a given regular
pattern. For example:

"Hello".replace("/H/", "h") #=> hello

···

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2

Please look it up in the docs

Cheers

robert

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2008/9/1 Zhao Yi <youhaodeyi@gmail.com>:

I want to replace a string with the new value on a given regular
pattern. For example:

"Hello".replace("/H/", "h") #=> hello

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use.inject do |as, often| as.you_can - without end

3

You can use String#sub[1] to replace one occurance:
"HHello".sub(/H/, "h") #=> "hHello"

or gsub[2] to replace all:
"HHello".gsub(/H/, "h")

[1] gsub (String) - APIdock
[2] gsub (String) - APIdock

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On Mon, Sep 1, 2008 at 10:36 AM, Zhao Yi <youhaodeyi@gmail.com> wrote:

I want to replace a string with the new value on a given regular
pattern. For example:

"Hello".replace("/H/", "h") #=> hello

4

Zhao Yi wrote:

I want to replace a string with the new value on a given regular
pattern. For example:

"Hello".replace("/H/", "h") #=> hello

String#gsub (which is in the docs, btw)

HTH,
Sebastian

···

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5

Thomas Wieczorek wrote:

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On Mon, Sep 1, 2008 at 10:36 AM, Zhao Yi <youhaodeyi@gmail.com> wrote:

I want to replace a string with the new value on a given regular
pattern. For example:

"Hello".replace("/H/", "h") #=> hello

You can use String#sub[1] to replace one occurance:
"HHello".sub(/H/, "h") #=> "hHello"

or gsub[2] to replace all:
"HHello".gsub(/H/, "h")

[1] gsub (String) - APIdock
[2] gsub (String) - APIdock

ok thanks.
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